Tina is getting ready to plan her science fair project. She is intrested in doing something with tomato plants. Which of the following could be tested through scientific experimentation?
A. which variety of tomato plant produces the tomatoes that taste the best?
B. which variety of tomato plant will look the most attractive in her garden?
C. which variety of tomato plant will produce the greatest yield in her garden?
D. which type of fertilizer will produce the tastiest tomatoes?