A growing plant is shown below.
Which of the following is a plant’s response to gravity that causes the roots to go down and the shoots to grow up?
A. Phototropism.
B.Geotropism
C.Hydrotropism
D.Thigmotropism
![A growing plant is shown below Which of the following is a plants response to gravity that causes the roots to go down and the shoots to grow up A Phototropism class=](https://us-static.z-dn.net/files/d49/8f54a46387c6492bb16f3072ab505568.png)