Answer: Sarah has a higher opportunity cost of laundering her clothes than Harold does.
Explanation:
The opportunity cost is the cost of choosing an option out of a set of available options to an individual. Sarah is wealthier than Harold, therefore sending her clothes to the laundry is easier for her than it is for Harold, therefore Sarah has a higher opportunity cost than John doing laundry, because she can easily pay to get the Job done, which is not the case for John.
