An Individual Demand Schedule or Curve Shows the Various Quantities

An individual demand schedule or curve shows the various quantities of a good that a person

A) wants and is able to purchase at alternative prices, everything else held the same.
B) has purchased at alternative prices, everything else held the same.
C) is able to purchase at alternative prices, everything else held the same.
D) is able to purchase at alternative income levels, everything else held the same.
E) has purchased at alternative income levels, everything else held the same.