Which of the following events would definitely result in a higher equilibrium quantity in the market? A. demand increases and supply decreases B. demand stays the same and supply increases C. demand...

Which of the following events would definitely result in a higher equilibrium quantity in the market?
A. demand increases and supply decreases
B. demand stays the same and supply increases
C. demand decreases and supply increases
D. demand and supply both increase
E. Both B and D.