What’s a benefit of using Smart Bidding with broad match?

Broad match with Smart Bidding uses your landing pages to determine which auctions to compete in so you’re only competing in the right auctions, at the right bid, for the right user.
Broad match with Smart Bidding uses your ad group name to determine which auctions to compete in so you’re only competing in the right auctions, at the right bid, for the right user.
Broad match with Smart Bidding uses your budget to determine which auctions to compete in so you’re only competing in the right auctions, at the right bid, for the right user.
Broad match with Smart Bidding helps make sure that you’re only competing in the right auctions, at the right bid, for the right user. It achieves this by picking up on contextual signals present at auction time

The correct answer is:

Broad match with Smart Bidding helps make sure that you’re only competing in the right auctions, at the right bid, for the right user. It achieves this by picking up on contextual signals present at auction time.