You Want to Design an Experiment to Compare the Effectiveness

Multiple Choice

You want to design an experiment to compare the effectiveness of Pepcid AC tablets and Alka-Seltzer tablets. Which of the following facts would be least likely to complicate your experiment and the analysis of your results?

A) PEPCID AC and Alka-Seltzer tablets contain different concentrations of the antacid drug.
B) PEPCID AC and Alka-Seltzer tablets contain different ingredients.
C) The recommended dosage for PEPCID AC and Alka-Seltzer tablets is different.
D) PEPCID AC and Alka-Seltzer tablets are sold in different countries throughout the world.