this question calls for parallelism and pronouns.
here, is acts as a linking verb. in that, it does not describe what the subject does but what the subject is
. in other words it does not describe the action
of the subject but state
of the subject.
Eg. She is a student. is - linking verb.
Linking verbs demand that subject and object be parallel. hence, way to do X is to Y is the parallel structure here.
Remember, parallelism does not always need parallel markers. Parallelism is called for wherever ideas are logically parallel.
So, A and E are parallel.
Lets see more.
A - process them
! oh! cirtus
btw is a collective noun and hence, singular. them
B - same error! they
C - them
D - they
? same error
E - it, correct. fruit, correct.
The tie between A and E that both support parallelism can be solved by pronoun issue.
Note that, without knowing that citrus
is singular, there was no way to solve this.
Hope this post helps!
Your kudos will let me know.