Do mutations in body cells contribute to genetic variation

Which sentence best expresses the differing opinions of these two book reviews?

What is responsible for the uneven heating between the poles and the equator on any given day

Color blindedness is a sex-linked trait. if we could see the pedigree chart for several more generations of the family illustrated here, we would expect a) more males to be color blind. eliminate b) more females to be color blind. c) no females to ever be color blind. d) an equal number of males and females that are color blind.