Which two signs need to be interchanged to make the following equation correct?
$$35 + 7 \times 12 − 6 \div 2 = 6$$

$$35\ +\ 7\times\ 12\ -\ \frac{6}{2}=6$$

A. - and *
$$35+7-12\times\ \frac{6}{2}=6$$

$$35+7-12\times\ 3=6$$

$$42-36=6$$

$$6=6$$

B. - and /

$$35+7\times\ \frac{12}{6}-2=6$$

$$35+7\times\ 2-2=6$$

$$35+7\times\ 0=6$$

$$42\times\ 0=6$$

$$\ 0=6$$

C. + and *

$$35+7\times\ 12-\frac{6}{2}=6$$

$$35\times\ 7+12-\frac{6}{2}=6$$

$$35\times\ 7+12-3=6$$

$$35\times\ 7+9=6$$

$$245+9=6$$

$$254=6$$

D. * and /

$$35+7\times\ 12-\frac{6}{2}=6$$

$$35+\frac{7}{12}-6\times\ 2=6$$

$$35+\frac{7}{12}-12=6$$

$$\frac{42}{12}-12=6$$

$$3.5-12=6$$

$$-8.5=6$$

Hence option A is the correct answer