阅读下列短文-根据短文内容，从短文后各题所给的A、B、C、D四个选项中，选择最佳答案。

　　Cara Lang is 13．She lives in Boston, Massachusetts, US．Last Thursday, she didn't go to school．She went to work with her father instead．Every year, on the fourth Thursday in April, millions of young girls go to work．This is Take Our Daughters to Work Day．The girls are between the ages of 9 and 15．They spend the day at work with an adult, usually a mother, father, aunt, or uncle．They go to offices, police stations, laboratories, and other places where their parents or other family members work．Next year, the day will include sons, too．

　　The Ms Foundation, an organization for women, started the program about ten years ago．In the US, many women work outside the home．The Ms Foundation wanted girls to find out many different kinds of jobs．Then, when the girls grow up, they can choose a job they like．

　　Cara's father is a film director．Cara says, “It was very exciting for me to go to the studio with my dad．I saw a lot of people doing different jobs．” Many businesses have special activities for girls on this day．Last year, Cara went to work with her aunt at the University of Massachusetts．In the engineering department, the girls learned to build a bridge with toothpicks and candy．In the chemistry department, they learned to use scales．They learned about many other kinds of jobs, too．

　　Right now, Cara does not know what job she will have when she grows up．But because of Take Our Daughters to Work Day, she knows she has many choices．

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