Answer:
The correct answer will be option- the height of the bean plant
Step-by-step explanation:
A scientific experiment performed to test the hypothesis must contain three types of variables which are: dependent, independent and the constant variable.
The dependent variable is the variable which has to be tested and is dependent or directly influenced by the independent variable which in the given question is the height of the plants influenced by the amount of light.
Thus, the height of the bean plant is the correct answer.