Which of the Following Does Not Specifically Cause a Membrane

Multiple Choice

Which of the following does not specifically cause a membrane to be more rigid or fluid, but rather causes the T_m to occur over a greater range?

A) increasing the content of unsaturated fatty acids
B) raising the temperature
C) increasing the cholesterol content
D) decreasing the phosphatidylcholine content while increasing the phosphatidylethanolamine content
E) all of the above