Please help me answer this. Thank you

Imagine you are walking into a store to buy a candy bar. You are willing to pay up to $3 for the candy bar, and the price is $1, so you purchase it. While you're checking out, you find a $5 bill on the ground. This is a multiple choice question: Which of the following choices, which describe brain region activation sequences, is most likely to correspond to the sequence of events described in the above paragraph? (a) First the central VMPFC, then the NAcc, and finally the medial VMPFC. (b) First the central VMPFC, then the medial VMPFC, and finally the NAca. (c) First the medial VMPFC, then the central VMPFC, and finally the NACQ, (d) First the NAcc, then the central VMPFC, and finally the medial VMPFC