Add in the Indicated Base $\begin{array}{r}52_7 \\+\quad 35_7 \\\hline\end{array}$ A) $140_7$ B) $120_7$

Multiple Choice

Add in the indicated base.
- $\begin{array}{r}52_7 \\+\quad 35_7 \\\hline\end{array}$

A) $140_7$
B) $120_7$
C) $117_7$
D) $210_7$