Vitamin Content of Fruits and Vegetables Is Preserved by All

Vitamin content of fruits and vegetables is preserved by all of the following methods EXCEPT

A) storing fruits and vegetables in moisture-proof, airtight containers.
B) storing fruits and vegetables in a cool place, such as the crisper drawer of the refrigerator.
C) using cooking methods such as steaming, stir-frying, or microwaving.
D) trimming and peeling fruits and vegetables soon after purchase.