An Alexa Skill Builder wants a skill to inform the users of the number of times they have launched the skill.
What approach should the Builder take to track this information?

A. Store and increment a launchCount session attribute.
B. Using the ASK SDK, implement a persistent attribute that is stored and retrieved from Amazon DynamoDB.
C. Perform a scan of the Amazon DynamoDB table for the number of records and count each record as a skill launch.
D. Set up a global variable in the code project that increments each time the code is invoked by Amazon Alexa.