Tom, Who Is 20 Years Old, Asks His Brother, Who

Tom, who is 20 years old, asks his brother, who is 50 years old, what percentage of his friends used condoms when they had sexual intercourse when they were Tom's age. Tom also asks his own friends about their frequency of condom use. If Tom's friends and Tom's brother's friends are typical for people of their generations, you should expect that Tom's friends are about ____ likely to use condoms during intercourse.

A) half as
B) equally
C) 1.5 times as
D) 3 times as