Final answer:
The subject of this question is Business. The question is asking about a company check that was prepared to increase the fund to $600.
Step-by-step explanation:
The subject of this question is Business. The question is asking about a company check that was prepared to increase the fund to $600. This involves understanding financial transactions and how checks are used to move money between accounts. In this case, the company check was prepared for $200 to increase the fund to $600.