In a Gray Code to Binary converter, how is the Most Significant Bit (MSB) of the Binary code determined?

Correct option is B

​$$\text{When converting Gray code} \rightarrow \text{Binary code, the rule for the most significant bit (MSB) is:} \\[6pt]B_n = G_n \\[6pt]\text{That means the binary MSB is \textbf{directly copied} from the Gray code MSB with no change.} \\[6pt]\text{The remaining binary bits are obtained using XOR operations, but the \textbf{first bit is unchanged.}}$$​​