While Developing a Skill, an Alexa Skill Builder Finds That

While developing a skill, an Alexa Skill Builder finds that the voice response is too quick and needs to be slowed down. How can the Builder MOST efficiently iterate and test how the response will sound?

A) Make changes in the skill code, deploy it, and test it on the device.
B) Modify the SSML in the skill, save it, and check Amazon CloudWatch for errors.
C) Edit the SSML in the skill and use the Alexa Simulator tab on the Test page of the developer console.
D) Use the Voice & Tone tab on the Test page in the developer console.