The answer is number 4.The fact that there is diversity in the American culture is healthy as vegetables in a salad because the result is healthy.No other nation has such a number of states , each with people from different origins, fighting together to make America what it is today, the strongest nation of the world.Is it not strenght that people look for when they think about a healthy diet?Diversity made America into a group of different people mixed together creating a glorious land to live in.
C. bicycling to build leg strength. It is the most general activity among the
four choices. Although it says to build
leg strength it is not so specific for what activity it will be used for. The other choices were more specific in their
goals.
Reason. Milk is a drink for children. It’s not “an” drink for children or “the” drink for children. Unless there is an article somewhere you didn’t post I don’t know what d) no article means.