$\"\"$

\

The polar equation is $\"\"$

\

The general form of polar equation is $\"\"$ .

\

Compare the polar equation with general form .

\

Here $\"\"$ and $\"\"$ .

\

Since $\"\"$ , the polar equation is hyperbola.

\

The directrix of the polar equation $\"\"$ .

\

Observe the graphs:

\

The correct choice is option $\"\"$ .

\

$\"\"$

\

The correct choice is option $\"\"$ .