Normal ferritin level in adult male

Normal ferritin level in adult male ?
a) 5-10 ng/ml
b) 100-200 ng/ml
c) 500-700 ng/ml
d) 800-900 ng/ml
Correct Answer - B
Ans. B. 100-200 ng/ml
Normal serum ferritin
Males - 30-400 ng/ml
Females - 30-200 ng/ml