Mr. Briggs got a job with an insurance company(保险公司) after he left school and went around visiting people in their homes to sell them life insurance. One day, after he had been working for the company for about a year, the insurance manager sent for him and said, “Mr. Briggs, I have been looking at your record as a salesman with our company, and there is one thing that surprises me about it. Why have you been selling insurance only to people over 95 years old, and why have you been giving them such generous（宽厚的）conditions? You’ll ruin our company if you go on like that.”
“Oh, no, sir,” answered Mr. Briggs at once, “Before I started work, I looked at the figures(数字) for deaths in this country during the past ten years, and I can tell you that few people die at the age of 95.”
Before he worked in an insurance company, what was Mr. Briggs?______.

A．He was a worker.	B．He was an official.
C．He was a student.	D．He was a businessman.

The word “ruin” in the second paragraph means       .

A．lose

B．break

C．leave

D．destroy

Which of the following is true according to the passage?      

A．Mr. Briggs had studied the figures for deaths for several years.

B．Mr. Briggs began to look at the figures after he started work.

C．A great number of very old people die every year.

D．The number of the very old people who died every year is small.