【单选题】A consumer's behavior was observed in three situations with different prices and incomes. In Situation 1, she chose a bundle that cost $1,600. In Situation 2, she chose a bundle that cost $2,500. In S...
A.
the bundle purchased in Situation 1 must cost less than $3,100 at Situation 3 pric
B.
the bundle purchased in Situation 3 must cost at least $3,100 at Situation 1 price
C.
the bundle purchased in Situation 1 can not cost less than $3,100 at Situation 3 price
D.
the bundle purchased in Situation 2 must cost at least $3,100 at Situation 1 pric