Consider the Following to Answer the Question(s) Below

Consider the following to answer the question(s) below:
A company that sells eco-friendly cleaning products is concerned that only 19.5% of people who use such products select their brand. A marketing director suggests that the company invest in new advertising and labeling to strengthen its green image. The company decides to do so but in a test market so that the effectiveness of the marketing campaign may be evaluated.
-Based on data collected in the test market, the company constructed a 98% confidence interval for the proportion of all consumers who might buy their brand. The resulting interval is 16% to 28%. What conclusion should the company reach about the new marketing campaign?

A) The data do not provide convincing evidence that the marketing campaign increases the proportion of customers purchasing the company's products.
B) The data do provide convincing evidence that the marketing campaign increases by 2% the proportion of customers purchasing the company's products.
C) The data do provide convincing evidence that the marketing campaign increases by 12% the proportion of customers purchasing the company's products.
D) The data do provide convincing evidence that the marketing campaign decreases by 2% the proportion of customers purchasing the company's products.
E) The data do provide convincing evidence that the marketing campaign decreases by 12% the proportion of customers purchasing the company's products.