In a triangular trough, water is rising at a rate of {1}/{32} feet per minute when the height is 2 feet. Determine the rate of change of the volume of water in the trough. 
a) {1}/{6} cubic feet per minute 
b) {1}/{4} cubic feet per minute 
c) {1}/{8} cubic feet per minute 
d) {1}/{12} cubic feet per minute