阅读下面材料，从每题所给的A、B、C、D四个选项中选出最佳选项
Born without arms or legs, Nick Vujicic
knew from an early age that he was different. There is no medical explanation
for Vujicic's physical disability. Though he struggles（挣扎）with
some little things of everyday living（brushing teeth,
for example）,he has become a great speaker.
Confidence didn't come naturally to
Vujicic. Growing up in Melbourne, Australia, he struggled with depression （抑郁）and
was bullied（欺凌）at school. When he was just 10 years
old, he tried to kill himself. Thanks to his family's strong support and
selfless love over time, Vujicic chose to be positive towards life. After his
mother showed him a newspaper article about a man dealing with a serious
disability when he was seventeen, he started to give public talks. The great
Australian has visited more than 50 countries and given thousands of talks. No
matter where he goes, he communicates the main message﹣that
no matter what difficulties you meet, you can overcome ! Here's what he said in
one of his powerful speeches:
"I felt like I was a
burden （负担）to
those around me and the sooner I go, the better it'd be for everyone. I wanted
to end my pain and end my life at a young age, but I am thankful once again,
for my parents and family who were always there to comfort me and give me
courage.
Because of my emotional struggles I had
experienced with bullying and loneliness, God has given me a passion（激情）of
sharing my story and experiences to help others deal with whatever difficulty
they have in their life and let God turn it into a blessing. To
encourage and inspire others to live to their fullest potential and not let
anything get in the way of achieving their hopes and dreams. "
