What is the main idea of the paragraph?
"When a consumer product in some way has a negative impact on society, governments often move to place high taxes on those products to discourage use, for example high taxes on cigarettes and alcohol. Obesity should be viewed in the same light. With the high availability of soft drinks and junk food at an affordable low price, consumers are all but discouraged from eating healthy. A tax on such products would discourage mass purchasing and positively impact our society by curbing obesity rates."
To encourage healthy eating, higher taxes should be imposed on soft drinks and junk food
Taxes on healthy food items should be reduced
High taxes on a product discourage use
Low prices and high availability of junk foods results in an increased obesity rate