Answer:
C. Sex chromosomes
Explanation:
Sex chromosome is a type of chromosome that is responsible for the characteristics of an individual such as ️eye color, Hair type and ️child eye color. The sex of an individual i.e. male or female is also determined by sex chromosomes. Every individual has two pairs of chromosomes, one from father and one from mother. These pairs of genes determine certain physical features or traits in an individual.
Supporting signals because it has nothing to do with your body
I believe that C. The author uses comparison and contrast to organize ideas. is the answer that you are looking for, I hope this helps!