Which answer option provides the best overview of the passage based on the text structure used?
Yams and sweet potatoes are often confused - in fact, most "yams"
found in grocery stores in the United States are actually sweet
potatoes. The two types of starchy root vegetables are similar in some
ways: Both have a sweet taste and many health benefits, and both can
have white, orange, or purple flesh. But sweet potatoes have smooth
skin and are usually fairly small. Yams, on the other hand, are rough
and sometimes hairy and can be up to seven feet long!
A. The cause-and-effect structure illustrates the similarities and
differences between sweet notato