The police issued a warning on the radio. A dangerous man had escaped from hospital.

A. A dangerous man had escaped from hospital, so the police issued a warning on the radio. 

B. The police issued a warning on the radio about a dangerous man had escaped from hospital. 

C. The police issued a warning on the radio, namely, a dangerous man had escaped from hospital. 

D. A dangerous man had escaped from hospital where the police issued a warning on the radio.