According to the Text,which of the Following Statements About Comparative

According to the text,which of the following statements about comparative advertising is true?

A) Comparative advertising is highly regulated and is illegal in certain countries.
B) Direct comparative advertisements will not decrease purchase intentions for established brands even though consumer awareness of new ones is increased.
C) Comparative advertising for a new brand has a negative impact on purchase intentions if a brand with high credibility is the comparison product.
D) Canada has no federal law that has any regulatory power over comparative advertising.