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.

Reference: https://developer.amazon.com/en-US/docs/alexa/alexa-skills-kit-sdk-for-nodejs/manage-attributes.html