Use the scenario to answer the question
Scenario: You observe the growth of a group of plants that have been tipped over.
How will auxin influence cell growth in the roots of these plants?
Auxin will build up on the upper side of the root and stimulate cell growth.
Auxin will build up on the lower side of the root and stimulate cell growth.
Auxin will build up on the lower side of the root and inhibit cell growth.
Auxin will build up on the upper side of the root and inhibit cell growth.