Which of the Following Strategies Should Be Adopted to Effectively

Which of the following strategies should be adopted to effectively handle people with hearing disabilities?

A) Ensure you over exaggerate your mouth's movements so that the customer can see your mouth form words.
B) Interact with the customers by asking them closed-end questions for which the customer must provide descriptive answers.
C) Use facial expressions and gestures to emphasize key words or express thoughts.
D) Speak normally and avoid speaking louder as it might hurt the customer's sentiments.