How much will the customers pay for the new service a month？A．$0.99.B．$29.9.C．$2.99.D．$299

How much will the customers pay for the new service a month？

A．$0.99.

B．$29.9.

C．$2.99.

D．$299.

请帮忙给出正确答案和分析，谢谢！