Is the image an example of perpendicular lines? line AB intersects with another line at 90 degrees

Yes; the lines intersect.
Yes; the lines intersect at a right angle.
No; the lines never touch.
No; the lines are one-dimensional.

Which best describes a central bank's primary goals? limiting inflation and reducing unemployment reducing unemployment and maintaining cash flow controlling stagflation and reducing unemployment managing credit and ensuring the money supply's liquidity