A 28 year old male patient works long days that typically include numerous soft drinks and candy bars, but no opportunity to brush his teeth. He has continued to experience one to two carious lesions per year and now wants orthodontic treatment to straighten his teeth. Which of the following is the most appropriate initial step in addressing behavior modification for this patient?

Explaining how his present habits increase his caries risk.

Explain that treatment cannot be initiated until he can keep his teeth clean.

Illustrating, with the aid of drawings the basic caries process.

Providing a new toothbrush and sample tube of dentifrice.