Please answer it, explaining each option.

91. Which of the following statements are true with respect to membrane tiuidny of a phospholi bilayer? P.Increasing proportion of long chain fatty acids decreases membrane fluidity. . Increase in cholesterol content increases membrane fluidity. R. increasing proportion of cis unsaturated fatty acids increases membrane fluidity S. Increasing proportion of trans unsaturated fatty acids increases membrane fluidity (a) P and Q (d) Q and S (c) R andS (b) P andR