The picture below shows a right-triangle-shaped charging stand for a gaming system:

The side face of a charging stand is a right triangle labeled ABC. The measure of angle ACB is 90 degrees, and the measure of angle ABC is 50 degrees. Side BC measures 3 inches.

Which expression shows the height, AC, of the charging stand?

3 over cos 50 degrees
3(tan 50°)
3 over tan 50 degrees
3(cos 50°)