Answer:
B, 6
Explanation:
As there are 2 service options and 3 regular options All you do is multiply them:
2×3=6
Heres a different way to show it:
FS = Full service
SS = self service
R = regular
M = Midgrade
P = Premium
FS,R FS,M FS,P
SS,R SS,M SS,P
So it's 6