$($a$)$ What are the problems with the layout and display of this line chart? $($Select all that apply.$)$

The axis labels are not needed.

The chart contains unnecessary gridlines.

All the data points are not graphed.

The shading of the chart does not add value.

The $y-$axis label values are spaced much too close together.

$($b$)$ Create a new line chart for the monthly revenue data at Tedstar, Inc. Format the chart to make it easy to

$210000$

$200000$

$190000$

$180000$

$170000$

$160000$

$150000$