Respuesta :
i think it is D, she has already constructed the hypothesis and needs is performing the experiment. there is not much of an observation stage because she is looking at a distant end result in a set time frame.
The answer will be option D - analyze the results and make a conclusion
An assumption has already been made here as the student has noticed that other fruits ripe faster when they are kept with the bananas so she has conducted the experiment to observe the result and finally conclude to some result.