Which of the following recommended best practices should you follow when running experiments for your app’s Google Play store listing?

• Only test for one element and one attribute at a single time.
• Use a maximum of five variants for each attribute that you evaluate.
• Only test for two elements and two attributes at a single time.
• Use a maximum of two elements for each attribute that you evaluate.

The correct answer is:

• Only test for one element and one attribute at a single time.