A marketing analyst randomly surveyed 150 adults from a certain city and asked which type of tooth paste they were currently usingminusExtraWhitening or Regular. 96 said they were currently using Extra Whitening while the rest said they were using Regular. The analyst wants to determine if this is evidence that more than half of the adults in this city are using Extra Whitening. Which of the following is the correct nullhypothesis?

Choose the correct answer below. A. H0:p ExtraWhite=pRegular B. H0: p=0.64, where p=the proportion of all adults in this city using Extra Whitening C. H0: p>0.5, where p=the proportion of all adults in this city using Extra Whitening D. H0: p=0.5, where p=the proportion of all adults in this city using Extra Whitening