Marginal benefit curves slope
A) upward because of increasing opportunity cost.
B) upward, but not because of increasing opportunity cost.
C) downward because of increasing opportunity cost.
D) downward, but not because of increasing opportunity cost.
Question 2
For electricity, natural gas, or other forms of energy, it is very likely that the price elasticity of demand
A) is zero.
B) is infinite.
C) will decrease in magnitude as more time passes after a price change.
D) will increase in magnitude as more time passes after a price change.
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