For which company or companies is there a proportional relationship between the number of minutes and the monthly cost
A; Mobile plus only
B:Nation Mobile and celluar prime
C:National Mobile only
D;Mobile Plus and celluar prime
20 points! PLEASE HELP
![For which company or companies is there a proportional relationship between the number of minutes and the monthly cost A Mobile plus only BNation Mobile and cel class=](https://us-static.z-dn.net/files/db9/db1b98eca5ce99a7cb83fea19448be0b.png)