Before responding to the request, how should the Alexa Skill Builder verify that the request came from a user with a valid service account?

An Amazon Alexa Skill with account linking receives the following request from Alexa:

Before responding to the request, how should the Alexa Skill Builder verify that the request came from a user with a valid service account?
A . Confirm thatapiAccessTokenverifies that the user is in the resource server and that the token has not expired.
B . Confirm thataccessTokenverifies that the token has not expired and that the user is the resource owner.
C . Confirm thataccessTokenverifies that the user is in the resource server and that the token has not expired.
D . Confirm thatapiAccessTokenverifies that the token has not expired and that the user is the resource owner.

View Answer

Answer: A