For a Given Supply Curve, What Will an Increase in Demand

Multiple Choice

For a given supply curve, what will an increase in demand typically do to price and quantity?  

A)  It will increase price, but quantity could change in either direction. 
B)  It will increase quantity, but price could change in either direction. 
C)  It will decrease both quantity and price. 
D)  It will increase both quantity and price.