Ruby has observed that plants in her garden vary in height. She , wants to investigate whether a plant species (species A) grows faster than the other garden species (species B, C, and Di). Select the statement that describes Ruby gathering enough evidence to support a scientific explanation concerning plant growth rates.

Note: Consider reviewing how Ruby developed her conclusion on page 8 of this lesson to select the best answer.
(1 point)

Ruby measures the height of multiple plant species (A, B, C, and D) at regular intervals over a period of several weeks to compare their growth rates.