Joe wrote this expression to describe the number of tickets he gave to his friends.
10 - t
Which situation could be described by this expression?
A. Joe knows he has 10 tickets left. He does not know how many tickets he gave away.
B. Joe knows he started with 10 tickets. He does not know how many tickets he gave away.
C. Joe knows he gave away 10 tickets. He does not know how many tickets he has.
D. Joe knows he has 10 tickets left. He knows he gave away half of his tickets.