Solve the Problem $$\mathrm { L } = 2.25 \text { inches }$$

Multiple Choice

Solve the problem. Round your answer to two decimal places.
-The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 3 sec when the length is 36 inches, what is the period when $$\mathrm { L } = 2.25 \text { inches }$$

A) 3.5 sec
B) 3.25 sec
C) 3.75 sec
D) 0.75 sec