40. You have requested your colleague to assist in resolving customer complaints. Your colleague did not say anything and instead nodded his head and smiled. Was there any communication? If so, what kind of communication is used?

a. No, when they answer you, they will have communicated back, completing two-way communication

b. You won't really know until they answer though

c. No, at this stage it is one-way communication

d. Yes, they have used non-verbal communication