A 9-month-old, well-nourished boy who live
题型：单项选择题
问题：
A 9-month-old, well-nourished boy who lives with his extensive extended family tests positive for tuberculosis. Which of the following is a risk factor for tuberculosis in this client
A. Male sex.
B. The infant is in the 95th percentile for height and weight.
C. His mother did not receive prenatal care until the second trimester of her pregnancy.
D. Ag