Answer:
The correct answer will be option- time
Step-by-step explanation:
An independent variable is a variable in the experiment which can be modified or changed manually or change on its own. This independent variable influences the dependent variable and controls the fate of the experiment.
In the given question, Time will be considered as the independent variable as it gets changed on its own and directly influences the dependent variable which could be like a number of bees at each flower.
Thus, Time is the correct answer.