What Symbolized Argument Does This Truth Table Illustrate $$\begin{array} { l c c c } a & b & a \& b & a \\\hline T & T & T & T \\T & F & F & T \\F & T & F & F \\F & F & F & F\end{array}$$

Multiple Choice

What symbolized argument does this truth table illustrate?
$$\begin{array} { l c c c } a & b & a \& b & a \\\hline T & T & T & T \\T & F & F & T \\F & T & F & F \\F & F & F & F\end{array}$$

A) a & b
$\therefore$
a
B) a & b ~a
$\therefore$
b
C) a & b
B & a
$\therefore$
a
D) ~a & b
$\therefore$
a