Consider the following logic circuit diagram.

Which is/are the CORRECT option(s) for the output function?

The following two signed 2's complement numbers (multiplicand M and multiplier Q ) are being multiplied using Booth's algorithm :

M : 1100110111101101 and Q : 1010010010101010

The total number of addition and subtraction operations to be performed is ________ (Answer in integer)

In a 4-bit ripple counter, if the period of the waveform at the last flip-flop is 64 microseconds, then the frequency of the ripple counter in kHz is _________. (Answer in integer)

Given the Following Karnaugh Map for a Boolean function $F(w,x,y,z)$:

Which one or more of the following Boolean expression(s) represent(s) F?