Fill in the blank with correct conditional expression

Hi Deniz, let's look at this English grammar problem together. We're asked to find the best phrase to complete a quote from a borrower.

The full sentence states that the poor man told the bank clerk: blank I didn't pay my debt? Note that the quoted part ends with a question mark.

Because the sentence ends in a question mark, we are looking for a phrase that can naturally introduce a hypothetical question.

Let's look at Option A, 'What if'. This phrase is commonly used to ask about a hypothetical situation or a potential consequence. It essentially asks, 'What would happen if?'

If we plug it in, we get: 'What if I didn't pay my debt?'. This fits both the grammatical structure and the logical context of a man speaking to a bank clerk.