Answer:
a. provide valuable feedback.
Step-by-step explanation:
Communication has often been defined as a two-way process of sending and then receiving information. So what comes first or the goal based on this definition is getting valuable feedback.
Hence, in ideal situations reaching mutual understanding isn't the goal, neither is commending others or self-advancement, but a conscious satisfaction that comes from having received valuable feedback.
For example, if there's no feedback, then the question about mutual understanding isn't relevant.