The line from which Helen grey implies that the author thinks physical beauty is not the most valuable quality would be “but so you miss that modest charm; which is the surest charm of them all” there’s no focus on any physical attribute but instead on the modesty of Helen grey
One issue revolving child exploitation is the use of marketing fast food restaurants towards children. It uses them to gain wealth.
The answer is C. You're welcome, if you have anymore questions. Please ask.