Which pH and volume were likely used for the watering time experiment?
(A) pH 4 and 40 mL
(B) pH 7 and 40 mL
(C) pH 4 and 80 mL
(D) pH 7 and 80 mL

An experiment was performed to assess the growth of two species of plants when they were grown in different pHs, given different volumes of water, and watered at different times of day over 6 weeks. Two plants were grown of each species and the average heights (in cm) are shown in the table.

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pH Vol- ume (mL) Time 2 4 7 10 13 10 20 40 80 160 12:00 A.M. 7:00 A.M. 12:00 P.M. 7:00 P.M. Species A Species B 3.2 4.1 37.6 20.6 62.3 22.4 48.4 13.5 4.1 2.7 4.9 19.2 56.2 65.1 2.6 62.3 61.1 66.7 65.3 12.4 38.9 45.6 21.5 1.8 20.3 21.8 18.4. 19.3