Which sentence uses consistent verb tense?

Which sentence uses consistent verb tense?

The trains pulled into the station and all of the passengers get out.

The guide at the museum walked the group around the exhibit as she explains the significance of the object.

I left the house without an umbrella and regretted it for the rest of the day.

Going for a walk on a sunny day relieves stress and encouraged good blood flow through the body.

The sentence "The trains pulled into the station and all of the passengers get out." uses consistent verb tense.