A) a schedule of how much of an item people will purchase at any particular price of that item during a specified time period, other things being constant.
B) a specific quantity of an item that people want at a particular price of that item during a specified time period, other things being constant.
C) a schedule of how much of a good or service people will purchase at any particular price of a different item during the specified time period, other things being constant.
D) a specific quantity of a good or service that people will purchase at one particular price of another item during a specified time period, other things being constant.
ANSWER:
A