Which of the Following Is an Effective Way to Improve

Which of the following is an effective way to improve your nonverbal communication skills? 

A) Ignore facial expressions and body language; instead, focus only on the verbal message.
B) Ask friends and family members to give you feedback on your nonverbal behavior.
C) Try to avoid associating with people from diverse cultures since you might misunderstand their nonverbal messages.
D) All of these choices are effective ways to improve your nonverbal communication skills.