Identify the sentences with correct parallel structure. Check all that apply.

At the company picnic lunch, items will include potato salad, hot dogs, watermelons, and chips.

Hanging out by the copy machine, congregating by the water cooler, and visiting in the hallways are forbidden at headquarters.

The receptionist seems to enjoy filing, answering the phones, and to greet new guests.

At the end of the quarter, the CFO makes it his priority to visit each branch, review quarterly reports, and report to the board on quarterly performance.

Over the last few months, our organization has filled three new positions: the auditor in accounting, the benefits specialist in HR$,$ and the data$-$entry clerk in records.