Use the Following Information to Answer the Question

Use the following information to answer the question. Which treatment is most effective at treating carpet stains: vinegar, ammonia, or hydrogen peroxide? In a study, researchers randomly assigned 55 carpet samples with identical stains to one of three groups. Depending on which group they were assigned to, each carpet sample received a home remedy of water mixed with vinegar, ammonia, or hydrogen peroxide. Afterwards, each carpet sample was examined and any remaining stain was measured. Researchers found that a vinegar and water mixture produced better results than both ammonia and hydrogen peroxide.
-Choose the statement that restates the conclusion of the study in terms of cause- and- effect conclusion.

A) A water and ammonia mixture effectively treats carpet stains compared to ammonia and hydrogen peroxide.
B) People who use water and vinegar to treat carpet stains will have fewer visible carpet stains.
C) A water and vinegar mixture effectively treats carpet stains compared to ammonia and hydrogen peroxide.