Respuesta :
the answer is, phototropism. phototropism is an organism that grows towards the sunlight away from earth.
Answer:
Option A, Geotropism
Explanation:
The movement of an organism (specially the plants) as a response to the gravity of earth is called geotropism.
The roots of the plant exhibit positive geotropism as they move towards the gravity of earth while growing downward.
On the other hand , the shoot /stem of the plant show negative geotropism as they move away from the gravity of earth while growing in upward direction.
Hence , Option A is correct