Here is the extracted text: Q.7. Let \( \log_x 4 = \log_{16} y = \log_z 32 \), where \( x, y, \) and \( z \) are positive integers. Then what is the value of \( y \)? A) 256 B) \( 2^{16} \) C) \( 16^4 \) D) \( 4^{16} \)