1.One of the following is not a method of calculating GDP:

a.Value added

b.Income

c.Expenditure

d.Production surplus

2.The supply of boiled eggs and soup in the market......

a.Stay the same

b.Rise

c.Drop

d.Jump

3.The supply of rice will increase if:

a.People prefer rice

b.People expect the price of rice to rise in the future

c.The income of people increases

d.The raw materials prices drop