What is the best topic sentence for a paragraph about depression and
sadness among high school students?
A. Sometimes Alex feels sad when she has too much schoolwork.
B. Studies show that depression seems to be on the rise in most high
schools across the country.
C. Many parents feel sad or lonely when their children leave for
college, especially if the university is in another state.
D. Students who belong to a group or club tend to be happier and
more social.
