NTO is using a mobile campaign to collect an email addresses of interested subscribers.

To successfully create a TriggerSend object using AMPscript's API functions, the following objects are required:

TriggerSendDefinition (B) - Defines the parameters of the triggered send, including the email to be sent and the associated attributes.

Subscribers (D) - Represents the individual recipients who will receive the email.

These objects ensure that the correct email is sent to the specified subscribers when the TriggerSend is executed.