Think of it this way: your friend is thinking of a year, and you have to guess which. She has told you the year is in the 20th century (1900s). There are 100 years in the 20th century (1901-1999 plus 1900). There can be 100 possibilities
Liam will only have to pay $211 per month for health care related feed this year because the annual deductibles will only be in effect if he continues to visit his physician and chiropractor regularly. This will put the insurance company at ease that he is at his most healthy state.