What happens next in this paragraph?

How to track a package
Ask your post office clerk whether tracking is included with your postage.
Priority mail and standard post packages include united states postal service (usps) tracking services. This service is available when shipping online or shipping at the post office.
Available options:
A). Postage is very often the only billing method which takes priority and can sometimes be the safest option. In this situation, call your post office customer service at 1-800-274-8255, and inquire if tracking can be taken offline.;
B). These services can be effective for tracking and delivering a package to a particular destination. However, they do not have the necessary capabilities to track both package and delivery services.;
C). Tracking is not included with media mail or first class mail. You can add the tracking service for an additional fee.;
D). Provider registered mail and basic use mail that has been legally registered may be included in the package, as well. Cavefront tracking is a service that provides tracking to mailers and postal service.;
C).