Which of these sentences uses the correct punctuation? All the firefighters (sixty-three in all) were wearing their firefighting gear. All the firefighters (sixty three in all) were wearing their firefighting gear. All the firefighters sixty-three in all were wearing their firefighting gear.

Respuesta :

All the firefighters (sixty-three in all) were wearing their firefighting gear.

The last sentence would need to be separated with commas for "sixty-three in all"