Most People Already Know That Tums, a Popular Antacid, Contains

Most people already know that Tums, a popular antacid, contains calcium. Today, ads for Tums stress both the fact that it can be used as a calcium supplement and the health benefits of calcium. The new promotion involves changing consumers' attitudes toward Tums by

A) changing beliefs about the extent to which Tums has a specific attribute.
B) changing the perceived importance of a specific attribute.
C) adding a new attribute.
D) reducing the perceived risk.
E) providing stimulus generalization to prospective buyers.