To save the drowning child, the boy plunged into the icy water without hesitation, ________ his own safety．

1. A.
   despite of
2. B.
   regardless of
3. C.
   unaware of
4. D.
   because of

To save the drowning child, the boy plunged into the icy water without hesitation, ____ his own safety.

A. despite of                   B. regardless of           C. unaware of                  D. because of

To save the drowning child, the boy plunged into the icy water without hesitation, ____ his own safety.

A. despite of　 B. regardless of　　　　　　　 C. unaware of D. because of

To save the drowning child, the boy plunged into the icy water without hesitation, ____ his own safety.

A. despite of　 B. regardless of　　　　　　　 C. unaware of D. because of