Select the sentence that has the correct usage of parenthesis.

1a. The tennis team (especially Jim) played great.

1b.The tennis team—especially Jim—played great.

2a. The tennis team (except for Matt) played great.

2b. The tennis team—except for Matt—played great.

3a.Erica looked beautiful (incredibly beautiful) in her prom gown.

3b. Erica looked beautiful—incredibly beautiful—in her prom gown.

4a. If you eat too much ice cream (as I’ve done today), you’ll get fat.

4b. If you eat too much ice cream—as I’ve done today—you’ll get fat.