Answer:
(D) decreasing perceived risk
Explanation:
It is recommended that Colgate is the number-one toothpaste by most dentists due to its involvement in offering accurate references. It is one of the strategies to decrease perceived risk. Another strategy Colgate company has followed over the year is ensuring transparency. They have accurate data that supports that Colgate is the best toothpaste. Since all those strategies are used to reduce perceived risk, option "D" is the correct answer.