This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to help kids with homework in secondary school
Don't wait for your child to ask for help.
Middle schoolers often see themselves as independent and because of that don't ask for help. If you see your child struggling, go and help.

Available options:
[A]. Avoid yourself and don't do chores your child doesn't need your help with. You will be more likely to understand the problem if it is rather complex..
[B]. Most children will appreciate being offered a meal, a ride home, and anything else you can do to help them. Encourage your child to take his or her homework to a tutor..
[C]. Have your kid do homework; they will see you as self-sufficient, responsible and a trusted person. Kids usually need homework to do maths..
[D]. Familiarize yourself with the topics being covered. Especially as your child goes into the more advanced math or a class you never took, make sure you know the topic well enough that you can explain it..
The answer is:
[D].