Ineed . (i will give brainliest to the correct answer.) in a magazine advertisement, a manufacturer claims its laundry ball, which contains ceramic pellets, gets clothes clean by changing the ph of the water. the ad claims the product reduces wear on their clothing, contaminants in the environment, and the cost of doing laundry. what should the advertisement include to give a consumer more confidence in this product's claims? a. information about product testing in a study that includes a control group b. a lack of testimony from users who have used the product for several months c. pictures comparing loads of laundry cleaned with and without the product d. information about how the product benefits the environment

The correct answer is option a. Information about product testing in a study that includes a control group.

The experiments and the visible result creates a trust about the use of the product. The advertisement can include the observation of product testing, in which a control group should be present. In the control group, the product should not be used and in the experimental group the product should be used. A comparison of the control group and experimental group can help in observing the difference with and without use of the product.

the answer to your question is slate

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .