Answer:
The best answer to the question: This is an example of used a(n):___, would be, A: Conceptual framework to solve new problems.
Explanation:
A conceptual framework is a an analytical method, or technique, that is used in order for the person to be able to see the full picture, and the different variants and factors around it, in an organized manner. Applying this technique will allow a person to discover all the factor within an issue, visualize them and propose viable solutions to them. And this is what Mark did when he came by the non-standard transaction type. He still had to record the transaction, but the usual methods would not work for it. Therefore, Mark made use of his own knowledge and after viewing the problem through the conceptual framework technique, he was able to find a reasonable solution and thus filfill his job.