关于急性骨髓炎下列哪项正确()

A．多发生在骨干

B．最常见的致病菌是乙型链球菌

C．老年人抵抗力弱，最易发病

D．主要的感染途径是经血液循环

E．主要的感染途径是淋巴系统

—He found a baby in his car when he came back from the supermarket. And ___ was crying for some milk.

—When was _____?

—_____ was in 2000 when he was still in college.

A．it; that; This

B．he; this; It

C．she; it; This

D．it; that; It