2025 AMC 8 Problem 9

Ningli looks at the 6 pairs of numbers directly across from each other on a clock. She takes the average of each pair of numbers. What is the average of the resulting 6 numbers?

\textbf{(A)} 5 \qquad \textbf{(B)} 6.5 \qquad \textbf{(C)} 8 \qquad \textbf{(D)} 9.5 \qquad \textbf{(E)} 12

Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.