The Essential Difference Between a Change in Supply and a Change

Multiple Choice

The essential difference between a change in supply and a change in the quantity supplied is

A) the first is caused by a change in input prices,while the second is caused by a change in the price.
B) the first is a movement along the curve,while the second is a shift of the curve.
C) the first is caused by a change in the price,while the second is caused by a change in input prices.
D) nothing;both are caused by a change in the price.
E) nothing;both are caused by a change in input prices.