Mr． Brown is a young famous businessman． He lives in the countryside and he often drives his car to his office．

One day， while Mr． Brown was driving down a street with the loud music on， he gaw some children running around． Suddenly， a stone flew to his car's door! He stopped his car and jumped out， shouted to a girl， "That's my new car and it will cost a lot of money to repair it!"

"I'm sorry…I didn't know what else to do． "The girl said． With tears in her eyes， the girl pointed to a boy lying on the ground． "It's my brother，" she said． "He fell out of his wheelchair and I couldn't lift him up． He's too heavy for me． I just wanted to get your attention．" After hearing her words， Mr． Brown lifted the boy back into the wheelchair．

Mr． Brown keeps the dent（凹痕） to remind himself， "Don't go through life too fast， or someone will have to throw a stone at you to get your attention!"

（1）What does Mr． Brown do？ 　 　

A．	A driver．
B．	A businessman．
C．	A wheelchair maker．
D．	A doctor．