What are Commonly Called Sea Slugs and are Actually Marine

Question

What are commonly called sea slugs and are actually marine gastropods with a greatly reduced shell?  
A) Mollusks
B) Cephalopods
C) Oligochaetes
D) Nudibranchs
E) Chitons

Accepted Answer

Nudibranchs are commonly called sea slugs, but they are actually marine gastropods with a greatly reduced or absent shell. Mollusks, cephalopods, oligochaetes, and chitons are not commonly referred to as sea slugs.