By interchanging which two signs the equation will be correct?
$$11 + 9 - 4 \times 12 \div 6 = 32$$

Option (a) $$\div and -$$

$$11 + 9 \div 4 \times 12 - 6 = 32$$

$$11+\frac{9}{4}\times12-6=32$$

$$11+9\times3-6=32$$

$$11+27-6=32$$

32=32

The given equation is satisfied. So this is the correct answer.

Option (b) $$- and +$$

$$11 - 9 + 4 \times 12 \div 6 = 32$$

$$11-9+4\times2=32$$

$$2+8=32$$

The given equation is not satisfied. So this is not the correct answer.

Option (c) $$\times and +$$

$$11 \times 9 - 4 + 12 \div 6 = 32$$

$$99 - 4 + 2 = 32$$

$$97\ne\ 32$$

The given equation is not satisfied. So this is not the correct answer.

Option (d) $$\times and \div$$

$$11 + 9 - 4 \div 12 \times 6 = 32$$

$$11+9-\frac{4}{12}\times6=32$$

$$11+9-\frac{24}{12}=32$$

$$11+9-2=32$$

$$18\ne\ 32$$

The given equation is not satisfied. So this is not the correct answer.