Suppose the Government Spending Multiplier Is 1

Suppose the government spending multiplier is 1.5.This means that

A) a $1 decline in government spending will raise Real GDP by $1.50.
B) a $1 rise in government spending will raise both total spending and Real GDP (assuming prices are constant) by $1.50.
C) a $1 rise in government spending will raise investment spending by $1.50.
D) a $1 rise in government spending will change interest rates by 1.50 times what it was before the $1 rise in government spending.
E) none of the above