Select from: (A). No (B). Yes
Q: I am verifying the answers generated by an automatic system to the following question: what is the name of an investigation with controlled variables Suggested answer: Another example might be testing plant fertilizer by giving it to only half the plants in a garden: the plants that receive no fertilizer are the control group, because they establish the baseline level of growth that the fertilizer-treated plants will be compared against. Should I validate this answer?
A:
(A).