Assuming the following array grades:

import numpy as np

grades $=$ np$.$array$([[87,96,70],[100,87,90],$

$[94,77,90],[100,81,82]])$

Which of the following statements a$),$ b$)$ or c$)$ is false?

Question $6$ options:

The following code selects an element in grades by specifying a tuple containing the element's row and column indices in square brackets:

grades$[0,1]$

To select a single row, specify only one index in square brackets, as in

grades$[1]$

To select multiple sequential rows, use slice notation, as in

grades$[0$:$2]$

and to select multiple non$-$sequential rows, use a list of row indices, as in

grades$[[1,3]]$

All of the above statements are true.