Bacterial Cells Change the Fluidity of Their Lipid Membranes to Adapt

Bacterial cells change the fluidity of their lipid membranes to adapt to growth at lower temperatures by increasing the synthesis of:

A) cholesterol.
B) long-chain fatty acids and increasing the saturation of their membrane lipids.
C) both long- and short-chain fatty acids.
D) long-chain fatty acids and decreasing the saturation of their membrane lipids.
E) short-chain fatty acids and decreasing the saturation of their membrane lipids.