How can Smart Bidding with broad match help marketers?

It helps make sure they’re using their budget to determine which auctions to compete in so they’re only competing in the right auctions, at the right bid, for the right user.
It uses landing pages to determine which auctions they should compete in so they’re competing in the right auctions, at the right bid, for the right user.
It uses their ad group name to determine which auctions to compete in so they’re only competing in the right auctions, at the right bid, for the right user.
It helps make sure their business is competing in the right auction, at the right bid, for the right user. It does this by picking up on contextual signals present at auction time.

The correct answer is:

It helps make sure their business is competing in the right auction, at the right bid, for the right user. It does this by picking up on contextual signals present at auction time.