Which sentence contains a nonrestrictive clause and is punctuated correctly?

The teacher packed picnic lunches for all the students—which they loved—and ate lunch outside with them at recess.
The teacher packed picnic lunches for all the students which they loved—and ate lunch outside with them at recess.
The teacher packed picnic lunches (for all the students) which they loved and ate lunch outside with them at recess.
The teacher packed picnic lunches for all the students which they loved and ate lunch outside with them (at recess).

Respuesta :

Ummm can you restart what but shorter

Answer:

The correct sentence is - The teacher packed picnic lunches for all the students—which they loved—and ate lunch outside with them at recess.

A nonrestrictive clause is a type of adjective clause offering additional detail on a word that already has a specific meaning.