A study by a group of dentists has concluded that regular

A study by a group of dentists has concluded that regular use of a certain brand of mouthwash is as effective as flossing in preventing gum disease.The mouthwash comapny has released a television ad suggesting that people who do not like flossing can now rely solely on mouthwash and brushing to maintain good dental health.A leading manufacturer of dental floss brought a lawsuit against the mouthwash comapny demanding that the adv be discontinued on the grounds that it is misleading.


which of the following , if true provides the strongest support for the dental floss company's claim that the adv is misleading?


a) the dental floss manufacturer is concerned that it will lose market share in the dental market health because the adv encourages ppl to switch from dental floss to mouthwash.

b)the dental floss company claims in its own adv that brushing and flossing after every meal is the most effective way to maintain good heath.

c)although mouthwash is an effective deterrent to gum disease,it is less effective than dental floss at removing plaque and preventing cavities between teeth.

d) per usage,mouthwash is 3 times more expensive than dental floss, if the recommended amounts of both products are used.

e)the dentists who conducted the study on the effectiveness of mouthwash in preventing gum disease obtained their funding for the study from a comapny that manufactures mouthwash.

Am confused between c) and e)

SOURCE:MCGRAW-HILL 2013 Edition