Respuesta :
Answer:
B
Step-by-step explanation:
The number of combinations of n objects taken r at a time is determined by the following formula: C(n,r)=n!/(n−r)!
Answer:
B
Step-by-step explanation:
The number of combinations of n objects taken r at a time is determined by the following formula: C(n,r)=n!/(n−r)!