In the following question, which one of the four interchanges in signs and numbers would make the given equation correct ?
$$  15 + 4 - 2 \times 7 = 27 $$

A

$$ \times  and  - ; 4  and  15 $$

B

$$ - and  + ; 2  and  15 $$

C

$$ +  and  -  ; 2  and  4 $$

D

$$ \times  and  +  ; 7  and  4 $$