In a study of whether taking a garlic supplement reduces the risk of getting a cold, participants were assigned to either a garlic supplement group or to a group that did not take a garlic supplement. Based on the study, it was concluded that the proportion of people taking a garlic supplement who get a cold is lower than the proportion of those not taking a garlic supplement who get a cold. (a) What were the researchers trying to learn? What question motivated their research? The researchers wanted to find out whether taking a garlic supplement reduces the likelihood that someone will get a cold. The researchers wanted to find out whether getting a cold increases the likelihood that someone will take a garlic supplement. The researchers wanted to find out whether taking a garlic supplement increases the likelihood that someone will get a cold. The researchers wanted to find out whether getting a cold reduces the likelihood that someone will take a garlic supplement