Final answer:
The transaction where a person swapped $100 for $200 does not involve an actual payment; it is an exchange of an equal amount of money, making answer D) The transaction doesn't involve any actual payment the correct choice.
Step-by-step explanation:
When assessing whether the person who initially had $100 actually paid, we need to consider the meaning of a payment within a transaction. In a traditional sense, a payment is made when there is an exchange of goods or services for money. In this specific scenario, the person who had $100 gave it to someone who had $200 and received $200 in return. This can be considered a trade or an exchange, rather than an actual payment, as there is an equal swap of money - essentially, they swapped $100 for another $100 plus an additional $100. Given this logic, answer D) The transaction doesn't involve any actual payment would be the most accurate, as the exchange was seemingly a way to simply change the denomination of money from one party to another without any goods or services being involved.