Consider a consumer that faces the following budget-constrained utility maximisation problem: Maximise U (91, 92, 93) = q1 + In (9293) subject to P191 + P292 + P393 0, q2 >0, and q3 > 0, where p1 is the price of commodity one, p2 is the price of commodity two, p3 is the price of commodity three, and y is the consumer's income. The choice variables in this problem are q1, 92, and 93. You may assume that this consumer will optimally choose to exhaust his or her budget throughout this question. You may also assume that 0