aggregate is used to describe either supply or demand, economics homework help

If “aggregate” is used to describe either supply or demand then, ________

a) aggregate cannot apply to supply but only demand.

b) it is referring to the total value of either supply or demand for all goods and services from everyone in an economy.

c) it is referring to the total value of only demand because aggregate does not apply to supply.

d) it is referring to the total value of either supply or demand for all goods and services from corporations only.