146. How many subsets does the set $A = \{1, 2, 3, 4, 5, 6\}$ have that contain exactly two elements? (1) $8$ (2) $10$ (3) $12$ (4) $15$
\textbf{146.} How many subsets does the set $A = \{1, 2, 3, 4, 5, 6\}$ have that contain exactly two elements?
(1) $8$ \quad (2) $10$ \quad (3) $12$ \quad (4) $15$