Which of the following is the best example of substitutes?

A decrease in the supply of sugar increases the price of sugar from $1.00 a packet to $1.25 a packet. The quantity decreases from 100 packets a day to 80 packets a day. The price elasticity of demand of sugar is ________

A) 0.75 B) 0.5 C) 1.0 D) 1.25

Everything else held constant, if workers expect an increase in inflation, ________ aggregate supply ________

A) long-run; increases B) long-run; decreases C) short-run; decreases D) short-run; increases