What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged, and ‘×’ and ‘÷’ are interchanged?
43 + 15 ÷ 2 – 12 × 4 = ?

​‘+’ and ‘–’ are interchanged,

‘×’ and ‘÷’ are interchanged

​$$\begin{array}{|c|c|} \hline\textbf{Operation preference wise} & \textbf{Symbol} \\\hline\text{Brackets} &[], {}, () \\ \hline \text{Orders, of} & (power), √ (root) , of \\ \hline \text{Division}& ÷ \\ \hline \text{Multiplication} & × \\\hline \text{Addition} &+ \\ \hline \text{Subtraction} & - \\\hline\end{array}$$​​

8 ÷ 7 + 56 × 14 − 2 = ?

After interchanged the sign equation will be:

43 – 15 × 2 + 12 ÷ 4 = ?

? = 43 – 15 × 2 + 3

? = 43 – 30 + 3

? = 46 – 30

? = 16

Thus, the correct option is: (a)