Alma's math teacher said that there was 10 factorial (10! ) possible different orders in which the problems on the next exam could be arranged. what does 10! mean?

a- 10^100
b- 10(9+8+7+6+5+4+3+2+1)
c- 10(9)(8)(7)(6)(5)(4)(3)(2)(1)
d- 10,000,000,000
alma's math teacher said that there was 10 factorial (10! ) possible different orders in which the problems on the next exam could be arranged. what does 10! mean?

a- 10^100
b- 10(9+8+7+6+5+4+3+2+1)
c- 10(9)(8)(7)(6)(5)(4)(3)(2)(1)
d- 10,000,000,000