One Friday Evening You Meet That "Special Someone" for Whom

Multiple Choice

One Friday evening you meet that "special someone" for whom you have been searching your whole life. The person gives you a phone number, but you have no pen to write it down. In your excited state you are unable to rehearse the phone number in your head. How long can you expect your short-term memory to remember the number?

A) less than 10 seconds
B) 20 seconds
C) 5 minutes
D) at least 24 hours