How can you persuade them ___ the advantages of solar cars?

How can you persuade them ___ the advantages of solar cars?

1. A.
   of
2. B.
   to
3. C.
   into
4. D.
   out of

How can you persuade them ___ the advantages of solar cars?

  A. of    B. to    C. into    D. out of

 How can you persuade them ___ the advantages of solar cars?

  A. of    B. to    C. into    D. out of

How can you persuade them ___ the advantages of solar cars?