A student is revising Animal Diversity-I: a gastropod slowly crawls over a wet surface using a broad ventral structure. What should the student write in the answer sheet?

The muscular foot is a basic molluscan structure used for locomotion, attachment, burrowing, or prey capture depending on the class. In gastropods it is commonly used for crawling. This MCQ belongs to the Mollusca topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.