Select the correct combination of mathematical signs to replace the $\ast$ signs and balance the given equation.
$$13\ast 7\ast 12\ast 4\ast 15\ast 65$$

1. A
   $+,+,÷,\times ,=$
2. B
   $+,÷,\times ,+,=$
3. C
   $+,\times ,÷,\times ,=$
4. D
   $-,+,÷,\times ,=$