I need help please and thank you

Given this information, which expression must represent the value of b?

Asap i need it now choose all the answers that apply. sex-linked disorders affect males more than females affect females more than males can be carried by females, without being expressed are always expressed in males are caused by genes carried on the x and y chromosomes

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.