The underlined portion of this passage means which of the followingIf the sound of Herbert's footsteps were slower than usual, then he would possibly be bringing bad news?

If the sound of Herbert's footsteps were quicker than usual, then he would possibly be bringing good news.

If Herbert returned too soon, he would be bringing bad news.

If the sound of Herbert's footsteps were quicker than usual, then he would possibly be bringing bad news.