A company wants its employees to always use a professional tone with customers. A manager notices that one of her employees sometimes uses informal language when emailing customers. What should the manager do ? Select all that apply. Contact customers to ensure they're satisfied with recent communications Issue a warning for unprofessional behavior Provide examples of appropriate and inappropriate language when communicating with customers Encourage him to complete onboarding training again Require that he send all email drafts to her for review prior to sending to customers Meet with him to review the company's customer communication standards