An Alexa Skill Builder Is Building an Order Reporting Skill

An Alexa Skill Builder is building an order reporting skill. Occasionally, users need to enter 30-digit serial codes. How can this be accomplished while providing a good voice user interface experience?

A) Manually extend the timeout so that users can input all the numbers.
B) Use multiple requests for smaller segments of the code and store the data in session attributes.
C) Enter single digits one request at a time.
D) Request that users send the number using the Amazon Alexa app