Answer: A. "She was careful about my friends, and I myself was quite particular"
Explanation:
Answer: By providing data about careers and annual mean wages.
The graphs that appear in Career Planning for High Schoolers provide data that can help high schoolers decide which path to pursue in terms of career. The information they provide is that of annual wages. Expected wage is a factor that students should consider when deciding what to do with their future. Other factors that are relevant are how demanding a career is, how needed it is in the world, and what your passions and talents are.
The anecdote that introduces this topic, is the beginning sentence.
"When adolescence hit Frances Jensen's sons, she often found herself wondering, like all parents of teenagers, "What were you thinking?"
Reusing, works well for farming and improves crops