In an experiment to study the effect of different fertilizer types on tomato plant growth, researchers recorded the height of the plants over a 6-week period. The table below shows the average heights (in cm) of tomato plants treated with three different fertilizer types (A, B, C) at the end of each week:
Week | Fertilizer A | Fertilizer B | Fertilizer C |
---|---|---|---|
1 | 15 | 14 | 16 |
2 | 20 | 19 | 21 |
3 | 25 | 22 | 28 |
4 | 30 | 29 | 31 |
5 | 36 | 33 | 38 |
6 | 40 | 37 | 42 |
Based on the data, which statement is true regarding the growth of the tomato plants?