The webbed feet of the Alabio duck has neither nerves nor blood vessels, which renders the duck incapable of feeling the cold on its feet.
A Duck has 2 feet by nature until unless it looses one we assume duck has 2 feet .
(A)
has neither nerves nor blood vessels,
which renders the duck incapable of feeling the cold on its feet.-Incorrect
Feet is plural so have is expected
(B)
has neither nerves nor blood vessels, which renders
them incapable of feeling the cold on
their feet.-Incorrect
Incorrect use of has , them , their .
(C) have neither nerves nor blood vessels, rendering them incapable of feeling the cold on
their feet.-Incorrect
duck is singular , so its should be used.
(D) have neither nerves nor blood vessels, rendering the duck incapable of feeling the cold on its feet.-Correct
Correct use of have , the duck rather than them , its -pronoun for duck(E) have neither nerves nor blood vessels, rendering them incapable of feeling the cold on its feet.-Incorrect
when compared to option D - use of duck is better than using them