The Table Given Below Reports the Quantity Demanded and Supplied

The table given below reports the quantity demanded and supplied of a commodity in a market at different price levels. Table 3.4
Refer to Table 3.4.In the market represented by this table, at equilibrium:

A) the market price is $5 per unit.
B) there is a surplus of 900 units.
C) there is a shortage of 900 units.
D) 900 units are traded at a price of $3 per unit.
E) the market price is $1 per unit and the quantity traded is 500 units.