Answer:
d)GDP falls; PRICE LEVEL rises
Explanation:
Income taxes affect the consumption of the families as it reduces the disposable income Y (1 -t) = disposable income
As in this case, the income tax rate increase the consumption in the economy will decrease. This decrease will shift the demand curve to the left making decrease the GDP of the economy.
Because, there is an inverse relationship between the GDP and the price level, a decrease in the GDP will generate an increase in the price level.