1. According to the English rule a predicate adjective is something that modifies the subject of a sentence.
In the given example
“Does chocolate milk taste fresh to you?”
The predicate adjective is fresh.
because fresh linked with the subject which is the chocolate milk
Thus the answer is letter C. Fresh
Note: in a single sentence, it is possible to have more than one or multiple predicative adjective.
Example:
Chocolate Milk taste fresh and yummy.
=> Fresh and yummy are predicative adj.