A man with a genetic disease marries a woman who does not carry the disease. It is not possible for their sons to have the disease, but their daughters will inherit it. The disease must be

X linked dominant

Explanation:

In X linked dominant if the father carries the abnormal X gene,all of his daughters will have the disease because daughters always inherit their father's X chromosome and if the mother carries the abnormal X gene, half of all their children (daughters and sons) will inherit the disease tendency

In this case man is the one who is diseased and female is normal so daughters in this case will surely inherit the diseaseWhen a cross is made,all the sons are normal whereas daughters are diseased      

Were is the question

Ithink the answer is c. i’m not sure though i’ll notify you when i have an exact answer!