A student places six plants of equal sizes into six different, equal-sized pots containing the same amounts of potting soil and labels the pots U, V, W, X, Y, and Z. Using two pots in each of the three experiments, the student varies the amounts of sunlight, water, or air one plant receives but leaves the other pot unchanged. The tables show the factor varied in each pot and the observations made by the student after one week.
Which conclusion best explains the connection among all three experiments?
A. All plants grown in pots require the same amounts of the abiotic factors for their growth and survival.
B. All plants of the same size require the same amounts of the abiotic factors for their growth and survival.
C. The plants require a balance of all abiotic factors for their growth and survival.
D. The plants depend very little on abiotic factors for their growth and survival.