Which sentence contains an essential adjective clause?

The sponsor who pays for our uniforms deserves advertising at each game.
Our sponsors, who fund the team, are invited to the opening game.
After explaining the sponsorship levels, they agreed to join at the silver level.
During halftime, the speaker announced the sponsors.

Question

Which sentence contains an essential adjective clause?

The sponsor who pays for our uniforms deserves advertising at each game.
Our sponsors, who fund the team, are invited to the opening game.
After explaining the sponsorship levels, they agreed to join at the silver level.
During halftime, the speaker announced the sponsors.

angiedoesschool2275 · Answer

Actually, I believe it is A because when adjective clauses are considered essential, they have ZERO commas.

angiedoesschool2275 · Answer

Heres a link for if you need any more help with non-essential and essential adjective clauses!: https://www.quia.com/quiz/2469711.html