Other Things Being Equal, How Would the Market for Tablet

Multiple Choice

Other things being equal, how would the market for tablet computers be affected by a large increase in productivity in the tablet-computer industry?

A) a decrease in price and a leftward movement along the supply curve
B) a decrease in price and a rightward movement along the demand curve
C) a decrease in price and a rightward movement along the supply curve
D) an increase in price and a rightward movement along the demand curve