Answer:
B, all the other answers are just details that would be in an article, but not the main idea.
Explanation:
When observing an organisms phenotype you can predict the genotype with the dominant and recessive genes present. The genotype is the physical trait. The phenotype is responsible for the trait.
Brainliest?
Answer:
Wait did you give the answer or are you looking for one?
The testosterone level directly affects the ability of having a satisfying sex. It affects the men reproductive systems.