根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
For teens, life is not a playground. Rather, it’s a jungle. And, doing the parent of a teenager isn’t a walk in the park, either.
How will they deal with peer (同龄人) pressure? Motivation? Success or lack of confidence?     As a parent, you should help them learn the principles that will help them to reach their goals and live a successful life.
   Hopefully they will be a compass to help you deal with the problems they meet daily.
Be proactive (积极主动的)
Being proactive is the key to unlocking the other habits.     Proactive people understand that they are responsible for their own happiness and unhappiness. They don’t blame others for their own actions or feelings.
  
Teens can learn to develop the belief that it is possible to create an atmosphere of win-win in every relationship. This habit helps your teen learn to celebrate the success of others instead of feeling threatened by them.
Put first things first
This habit helps teens prioritize (区分优先次序) and manage their time so that they focus on and complete the most important things in their lives. Putting first things first also means learning to overcome fears and being strong during difficult times.    

A．Think win-win

B．Begin with the end in mind

C．Help your teen create a personal goal.

D．The life of a teenager is full of difficulties.

E. It’s living life according to what matters most.
F. Help your teen take control and responsibility for his life.
G. Here are three important habits for helping your teen understand and apply them.