Can someone please give me some main ideas for a scientific story? It has to be at least 500 words and I'm not sure what to write about. Please help

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.