Most of Your Life You Have Heard People Say That

Multiple Choice

Most of your life you have heard people say that you can't teach an old dog new tricks. When you hear this you should remember that

A) you shouldn't expect too much from older people.
B) there are enough anecdotal stories to support this statement so we can believe it.
C) this is a bit of folk wisdom that needs to be tested scientifically before we accept it.
D) people would only say this if the idea had been supported by a substantial amount of scientific evidence.