Answer:
The answer is indeed: [...] began, "I..."
Explanation:
The sentence we are studying here is written in direct speech. A sentence in direct speech replicates the exact words said by a certain person. To make that clear, the words said by the person are placed within quotation marks and separated from the rest by a comma.
The words inside the quotation marks are the exact words said by the representative. That's why there are commas separating them from the structure the representative began.