Recent studies have shown that the antioxidants found in the acai berry boost immune cell function more effectively than almost any other fruit, making it one of the healthiest widely available fruits on the market.
A. Recent studies have shown that the antioxidants found in the acai berry boost immune cell function more effectively than almost any other fruit, making it one of the healthiest widely available fruits
B. Recent studies have shown that the antioxidants found in the acai berry boost immune cell function more effectively than almost any other fruit, making them one of the healthiest fruits that is widely available
C. Recent studies have shown that the antioxidants found in the acai berry boost immune cell function more effectively than those in almost any other fruit, which makes the acai berry one of the healthiest widely available fruits
D. Because the acai berry’s antioxidants boost immune cell function more effectively than those in almost any other fruit, it is one of the healthiest fruits that is widely available
E. Because the acai berry’s antioxidants boost immune cell function more effectively than the antioxidants found in almost any other fruit, they are one of the healthiest widely available fruits
Source: Manhattan CAT
Question : OA is given as D but the antecedent for pronoun 'it' is acai berry's antioxidants and not acai berry itself. None of the options seems to correct all the problems in the original sentence. Please explain if in such exceptional cases, we can refer a pronoun to the possessive form of the noun