This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
An X-linked recessive disease is characterized by the following inheritance : 
Select and explain. 
A. Veical transmission, B. 50% female carriers if male is affected and female is normal, C. 50% male affected if female is carrier and male is normal, D. 50% male carriers if female is affected and male is normal
C: 50% male affected if female is carrier and male is normal
Answer: C: 50% male affected if female is carrier and male is normal 
Explanation: Answer is C (50% male affected if female is carrier)