Please Help.

Nathan had an infection. and his doctor wanted him to take penicillin. Because Nathan's father and paternal grandfather were allergic to penicillin, Nathan had a "591: chance of having the same allergy. The doctor performed a skin test to see whether Nathan would react to it. The test is 98% accurate. what is the probability that Nathan is allergic to penicillin and the test predicts it? 0 A. 0.005 O a. 0.015 O C. 0.245 O D. 0.?35