A consumer consumes only good A and good B. His only source of income is an initial endowment of 40 units of good A and 10 units of good B. He insists on consuming good A and good Bin xed proportions 1 unit of good A per 1 mm. of good B He initially faces a price of $10 per unit for each fruit. The price of good A rose to $40 per unit while the price of good B stayed unchanged. After the price change, he would O increase his consumption of good A by exactly 5 units. 0 decrease his consumption of good A by exactly 1? units 0 decrease his consumption of good B by at least 5 units. O decrease his consumption or good A by at least 9 units. 0 increase his consumption of good A by exactly 9 units