Hello, don't worry about an explanation, the correct answer is all I need. Thank you

Question 39 (1 point) an If in a given year nominal GDP grew by 11% while real GDP grew by 4%, inflation for this year must have been: 0 a) 11% O b) 15% O C) 8% Q d) 7% 0 e) -7% Question 48 (1 point) an The fraction of the last dollar of disposable income which is spent is known in economic circles as the: O a) MPW O bl marginal propensity to save 0 Cl marginal propensity to import 0 dl marginal tax rate 0 e) MPC Question 49 (1 point) an If the price of shoes falls from $100 to $80 and the amount sold increases by 12%, it can be concluded that: O a) the demand for shoes is perfectly elastic O b) the demand for shoes is inelastic O C) the demand for shoes is elastic Q d) the demand for shoes has unit elasticity 0 e) the demand for shoes is perfectly inelastic