Answer: b. $200
Step-by-step explanation:
A person's willingness-to-pay refers to the maximum price they would be want to pay for a good or service. For instance, if you refused to pay more than $25 for a jar of honey, your willingness-to-pay for the jar of honey is $25.
In this scenario, MusicLover will buy the headset if they are $195 but not if they are $210. His willingness to pay is therefore between $195 and $210. From the options, the only figure in that range is option B with $200.