Answer:
When we analyze the sentence we see that this is a hypotype with the growth of plants must behave and it has a prediction included. 
Therefore the correct answer is a
Step-by-step explanation:
 
In this exercise you are asked to identify the given sentence with a specific part of the scientific method. 
Among the parts of the method we have. 
* Independent variable . The controlled variable in research 
*Dependent variable. The magnitude measured in the experiment 
* Control variable. The magnitude that is not controlled 
*Experiment. It is the design of the procedure to evaluate the hypothesis 
* Hypothesis. It is the assumption with which scientific work begins 
* Prediction. It is a consequence of work if the mortgage is correct. 
 
When we analyze the sentence we see that this is a hypotype with the growth of plants must behave and it has a prediction included. 
Therefore the correct answer is a