[单选题]
For a straight-line dem*l0a1 uud;ab dand curve, which of the followinx2uww. a -pyp6g will occur when the price is2yupa -px .6ww lowered?
A. The total revenue decreases.
B. The demand curve shifts rightward.
C. The price elasticity of demand decreases.
D. The demand curve for complements shifts leftward.
