Which answer adds an adverb phrase to this sentence?

Question

We hiked to the top of the mountain.

Responses

We hiked to the top of the mountain but got a ride down in a car.
We hiked to the top of the mountain but got a ride down in a car.

We hiked to the top of the mountain and had a picnic.
We hiked to the top of the mountain and had a picnic.

We hiked to the top of the mountain slowly but steadily.
We hiked to the top of the mountain slowly but steadily.

We hiked to the top of the mountain and spent an hour looking at the view.
We hiked to the top of the mountain and spent an hour looking at the view.

Answer 1

The correct answer that adds an adverb phrase to the sentence is:

We hiked to the top of the mountain slowly but steadily.