—Did you call Ben? He was on the Net the whole night.

—         I wasn’t able to get through.

A．In case     B．Now that  C．On condition    D．No wonder

---Did you call Ben? He was on the Net the whole night.

---______I wasn’t able to get through.

　 A. In case　　　 　　　　 B. Now that　　　　　 　　　 C. On condition that　 D. No wonder