Assume that $,v,$ and ${?}^{{?}^{{?}^{?}}}$ are the NOT, OR$,$ and AND symbols, respectively. Use a truth table to determine if the following Boolean equation $x_{1}vv(x_2^{{?}^{?}}{x}_1)$ :

a$.$

Is functionally identical to an AND gate.

b$.$

Is functionally identical to an OR gate.

c$.$

Is not like an AND or an OR gate.

d$.$

Is a NOT gate.