Which two numbers should be interchanged in the following equation to make it correct?

$$6 + 28 \div 4 - 2 \times 17 = 12$$

By Trial and Error method,

Option A

$$6+28\div17-2\times4=12$$

$$6+\frac{28}{17}-2\times4=12$$

After solving the value will be decimal which is not possible. Hence Option A is incorrect.

Option B

$$6+2\div4-28\times17=12$$

$$6+0.5-28\times17=12$$

After solving the value will be decimal which is not possible. Hence Option B is incorrect.

Option C

$$17+28\div4-2\times6=12$$

$$17+7-2\times6=12$$

$$17+7-12=12$$

$$12=12$$

Hence, the correct answer is Option C