Final answer:
Option B is correct: there will be more males exhibiting the trait than females. This is due to males expressing X-linked recessive diseases when they possess a single recessive allele on their X chromosome, while females must inherit two such alleles.
Step-by-step explanation:
When considering an X-linked recessive disease, the pattern of inheritance is different between males and females due to their chromosomal differences. Males, with only one X chromosome, will express the disease if they have the recessive allele, since there is no second X chromosome to potentially carry a normal allele. This is why males are more likely to show X-linked recessive traits than females. Females, having two X chromosomes, must inherit the recessive allele from both parents to express the disease. If a female inherits only one recessive allele and a normal allele, she becomes a carrier but does not typically show symptoms of the disease.
Answering the student's question, option B is correct. There will be more males exhibiting the trait than females, due to the direct expression of any recessive allele on the single X chromosome males possess, making it much less likely for females to express X-linked recessive diseases unless they inherit the mutant allele from both parents.