Solve the Problem $\begin{array}{l|ll} & 1 & 2 \\\hline 6 & 61 & 62 \\7 & 71 & 72\end{array}$

Solve the problem.
-Construct a product table showing all possible two-digit numbers using digits from the set {1, 2, 6, 7}.

A)
$\begin{array}{l|ll} & 1 & 2 \\\hline 6 & 61 & 62 \\7 & 71 & 72\end{array}$
B)
$\begin{array}{l|llll} & 1 & 2 & 6 & 7 \\\hline 1 & 11 & 21 & 61 & 71 \\2 & 12 & 22 & 62 & 72 \\6 & 16 & 26 & 66 & 71 \\7 & 17 & 27 & 67 & 77\end{array}$

C)
$\begin{array}{l|llll} & 1 & 2 & 6 & 7 \\\hline 1 & 11 & 12 & 16 & 17 \\2 & 21 & 22 & 26 & 27 \\6 & 61 & 62 & 66 & 67 \\7 & 71 & 72 & 76 & 77\end{array}$

D)
$\begin{array}{l|llll} & 1 & 2 & 6 & 7 \\\hline 1 & 2 & 3 & 7 & 8 \\2 & 3 & 4 & 8 & 9 \\6 & 7 & 8 & 12 & 13 \\7 & 8 & 9 & 13 & 14\end{array}$