$\"\"$

The polar equation is $\"\"$ .

Convert the polar equation to a rectangular equation.

$\"\"$

Apply tangent on each side.

$\"\"$

Substitute $\"\"$ .

$\"\"$

$\"\"$ .

The equation $\"\"$ is in the form of line equation $\"\"$ .

The graph of $\"\"$ is a line passing through the pole making an angle of $\"\"$ with the polar axis.

Observe the graphs:

The graph (D) is a line passing through the pole making an angle of $\"\"$ with the polar axis.

The graph (D) is correct choice.

$\"\"$

The graph (D) is correct choice.