Which logic gate is represented by the following combination of logic gates

Options

A. OR
B. NAND
C. AND
D. NOR

Answer

C

Explanation

First two gates are NOT gates and the last gate is NOR gate.
Thus, `y_(1)=barA,y_(2)=barBandbar(y=y_(1)+y_(2))`
The truth table corresponding to this is as follows:

Thus the combination of gate represnts AND gate.