Suppose you want to simulate the probability that a family of six children will have at least two boys. You assume the probability of having a boy or a girl is the same. (Both are 1/2.) To start the simulation, you could: 

A. Flip six coins, letting heads represent a boy and tails represent a girl. 

B. Create 10 cards, 5 of which have boy written on them and 5 have girl written on them. You then choose 6 of these 10 cards without replacement. 

C. Roll six dice and let the numbers 1, 2, 3 represent a boy and 4, 5, 6 represent a girl. 

D. Only A and B are appropriate 

E. Only A and C are appropriate 

F. Only B and C are appropriate 

G. All three, A, B, and C, are appropriate