Select the correct combination of mathematical signs to sequentially replace Y and balance the following equation.

12 Y 2 Y 4 Y 30 Y 6

Given: 12 Y 2 Y 4 Y 30 Y 6

Logic: BODMAS

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

Let's analyze all the options:

(a) ×, =, –, ÷ (Incorrect)

After Substituting:
12 × 2 = 4 − 30 ÷ 6

12 × 2 = 4 − 5

24 = 4 − 5

24 $$\ne$$ - 1​

(b) ×, –, =, × (Incorrect)​
After Substituting:
12 × 2 − 4 = 30 × 6

24 − 4 = 180 

(c) ×, ÷, +, = (Incorrect)​
After Substituting:
12 × 2 ÷ 4 + 30 = 6

12 × 0.5 + 30 = 6

6  + 30 = 6

(d) ÷, ×, =, –  (Correct)

After Substituting:
12 ÷ 2 × 4 = 30 − 6

6 × 4 = 30 − 6

24 = 30 − 6

Thus, the correct option is (d) ÷, ×, =, –