The following figure shows a logic gate circuit with two inputs $\mathrm{A}$ and $\mathrm{B}$ and the output $\mathrm{C}$. The voltage waveforms of $\mathrm{A}$, $\mathrm{B}$ and $\mathrm{C}$ are as shown below:
The logic circuit gate is:

• A

  OR gate
• Correct answer
  B

  AND gate
• C

  NAND gate
• D

  NOR gate

Solution

Truth table
The circuit is AND- gate

Hence, the correct answer is option: 'B'.