Please answer the following question: Read the following article and select the best answer. Article: Today the word friendship has been used so often that it has lost its meaning. Some jokingly or seriously say that friends are made to be used. It makes me very sad. True friendship doesn't mean that when you need your friend's help,you will treat him to dinner,and when you have to protect yourself,you will put your friends in a difficult situation. In fact,true friendship is the communication and understanding of the hearts . True friendship is like water. Compared wish decent wine,water is tasteless,but is of great help when we are thirsty. True friends don't need to be with each other every day,but are connected in heart every minute. True friendship is like medicine. Though it is bitter,it cures your illness. True friends give you some suggestions even if they know you would not take. They criticize you when others have a good word for you,not because of envy but worrying that you may lose your cool head. True friendship has nothing to do with fame,power or money. True friends would often watch you silently far away when you are _ ,but come to you whenever you need their help. You're not his stepping-stone to success,but are his crutch to live through difficulties. True friends make you complete. Many persons go along with you through your life-your parents,your spouse,and your children,who take care of you and make your life happy. However,you still need someone who understands your thoughts and souls. Without them,you are likely to be unhealthy in spirit. True friends stay in your heart,rather than at your side;they know you more than yourself,and try to better you. Once you have found such a true friend,do treasure him. If your true friend disappears,how can you make the sound of your heart understood? Question: According to the passage,true friends may help you _ . - enjoy mental health - achieve success - understand them better - live a happy life
A:
enjoy mental health