Summing over tensor dimensions

You've been given a matrix, wealth. This contains the value of bond and stock wealth for five individuals in thousands of dollars.

wealth = $\begin{bmatrix} 11 & 50 \\ 7 & 2 \\ 4 & 60 \\ 3 & 0 \\ 25 & 10 \end{bmatrix}$

The first column corresponds to bonds and the second corresponds to stocks. Each row gives the bond and stock wealth for a single individual. Use wealth, reduce_sum(), and .numpy() to determine which statements are correct about wealth.