An Experimenter Conducts an Experiment in Which Subjects Are Randomly

An experimenter conducts an experiment in which subjects are randomly assigned to one of three conditions.Subjects in each condition consume different amounts of carrot juice and then have to perform tests of (i) visual acuity and (ii) mathematical reasoning.The experimenter's null hypothesis that consumption of carrot juice does not affect either visual acuity or mathematical reasoning is confirmed.Which of the following statements is true?

A) The experiment allows the researcher to conclude that the consumption of carrot juice cannot affect visual acuity or mathematical reasoning.
B) The experiment does not support the theory that the consumption of carrot juice affects visual acuity but not mathematical reasoning.
C) The dependent variables are inappropriate.
D) The experiment has three independent variable and two dependent variables.
E) None of the above.