Quote:
The prompt:
Bo Jackson, who is widely believed to be both one of the greatest athletes of all time and the first player to make an all-star team in baseball and football, leaves a legacy that will likely live on for generations to come.
The options.
Quote:
A. Bo Jackson, who is widely believed to be both one of the greatest athletes of all time and the first player to make an all-star team in baseball and football, leaves a legacy that
The meaning is absurd.
-- Bo Jackson either did or did not make an all-star team in two sports.
-- this sentence suggests that
people believe him to be the first player to make the all-star team in both sports.
What people believe Bo Jackson to be is not connected to the fact that he indeed made the all-star team in both sports.
Bo Jackson
was the first player to make the all-star team in both sports.
-- compare to (C). No contest. (C) wins.
Quote:
B .Bo Jackson, widely believed to be one of the greatest athletes of all time, was the first player to make an all-star team in both baseball and football, and he leaves a legacy
Almost always, we should not separate a compound predicate attached to a single subject with comma + and.
Almost always, we should not repeat the subject by inserting a pronoun.
If following these guidelines makes the sentence confusing, then we can make exceptions to these two guidelines.
This sentence is not confusing.
There is one subject, Bo Jackson.
There are two verbs. He
(1) WAS the first player to . . . and
(2) LEAVES a legacy . . .
Those two verb phrases are called a
compound predicate.(Compound predicate = one subject is followed by two verbs, or, stated differently, two verbs share one subject.)
If we have a single subject and a compound predicate (and no intervening dependent clauses), we do not separate the two verb phrases with a comma + and.
Further, we do not insert a pronoun — we do not repeat the subject.--
Wrong: Chris, my new friend, visited me last week
, and called the next day.
--
Wrong: Chris, my new friend, visited me last week
, and he called the next day.
--
Wrong: Chris, my new friend, visited me last week and
he called the next day.
--
Correct: Chris, my new friend, visited me last week and called the next day.
Quote:
C. The first player to make an all-star team in baseball and football, Bo Jackson, widely believed to be one of the greatest athletes of all time, leaves a legacy that
This sentence sounds abrupt. By comparison, though, it is the best of the five.
We can remove both appositives.
The first player to make an all-star team in baseball and football, Bo Jackson
, widely believed to be one of the greatest athletes of all time, leaves a legacy that will likely live on for generations to come.
Bo Jackson leave a legacy that will likely live on for generations to come. Correct.
Quote:
D. Widely believed to be one of the greatest athletes of all time, Bo Jackson, who was the first player to make an all-star team in baseball and football, and leaves a legacy that
-- the "and" makes it so that the who-clause should not be a who-clause.
The relative clause interrupts the connection between Bo Jackson and the verb
leaves-- Bo Jackson, who was X, and leaves. . .

-- Bo Jackson, who was X, did Y and leaves Z . . .
Where is the first active verb that would be parallel to
leaves?
comma + and suggests that there is a previous active verb. There is not.
There should not be a comma if the predicate is compound, a construction that "and leaves" suggests.
Quote:
e. Since he is the first player [to have made] to make an all-star team in both baseball and football and is widely believed [to have been] to be one of the greatest athletes of all time, Bo Jackson’s legacy
-- pronoun issues. HE is a pronoun that needs an antecedent (antecedents can come after the pronoun).
"Bo Jackson's" is a possessive adjective that describes
legacy, not a noun that precisely matches HE.
--
Be careful with this issue. If this answer were the only one without grammatical errors, we would choose it.If meaning is clear, the GMAC occasionally allows subject pronouns such as HE to have an antecedent that is a possessive noun.
See my post on this issue (the "possessive poison" guideline)
HERE--
Since occasionally can mean
because, although the latter is usually preferred.
-- A legacy is history. We need verbs such as those I have suggested to convey that Bo Jackson is not still making all-star teams.
I suppose we could say that [N.E. Patriots' quarterback, still playing]
Tom Brady's legacy will likely live on for generations to come, but it sounds weird to talk about a legacy while a person is still doing something.
Bo Jackson's actions should be rendered in past tense.
-- Compared to (C), not as strong.
The correct answer is C.