The earthquake and the heavy losses ________- contributed to disabled this family to afford his education.

The earthquake and the heavy losses ______contributed to disabled this family to afford his education.

1. A.
   that
2. B.
   it
3. C.
   what
4. D.
   which

 The earthquake and the heavy losses ________- contributed to disabled this family to afford his education.

A. that           B. it                            C. what                D. which

The earthquake and the heavy losses      contributed to disabled this family to afford his education.

A．that         B．it          C．what          D．which

The earthquake and the heavy losses ________contributed to disabled this family to afford his education.