As fat is lost from the body,fat cells

A) disappear.
B) shrink.
C) change to muscle cells.
D) divide.

As fat is lost from the body, fat cells shrink. This is because fat cells contain stored triglycerides which are released as energy when the body needs it. The fat cells themselves do not disappear and they do not turn into muscle cells. However, with weight loss, the number of fat cells in the body may decrease over time due to a process called apoptosis.