Which of the Following Is True of the London Dispersion

Which of the following is true of the London dispersion forces in fatty acids?

A) The London dispersion forces are maximum in unsaturated fatty acids.
B) The London dispersion forces are minimum in saturated fatty acids.
C) The London dispersion forces are higher for cis unsaturated fatty acids.
D) The London dispersion forces act over shorter segments of hydrocarbon chains.