Read the Paragraph Below and Then Answer the Following Questions

Read the paragraph below and then answer the following questions by selecting the letter of the correct response.
Coffee drinkers should seriously consider switching to tea. According to the latest research, the ingredients in tea may help people stay slim. When Taiwanese researchers studied 1,000 people, they found that the people who drank two cups of any kind of tea every week for ten years had 20 percent less body fat than people who didn't drink tea. But there's an even better reason to switch. As it turns out, tea lowers the risk of serious disease, such as some cancers, heart attack, and stroke. In 2003, scientists found out that after just three weeks of drinking five cups of black tea per day, fifteen people cut their cholesterol by 7 percent and their bad LDL cholesterol by 11 percent. Australian researchers studying 218 women found that tea reduced blood pressure; in fact, the more tea a person drank, the more blood pressure dropped. Coffee does not offer any of these health benefits, so tea is clearly the better beverage choice.
The subject of this paragraph is

A) the benefits of drinking tea.
B) healthy beverages.
C) coffee drinkers.