John is the project manager for a research and development project. According to the project communication management plan, John has to call in weekly project progress update meetings. The last few meetings were a disaster since more time was spent in arguments and less on decisions. Which of the following techniques does John need to quickly acquire?
A. Presentation techniques
B. Listening techniques
C. Writing style
D. Meeting management techniques

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Correct answer is D.
John needs to acquire meeting management skills that includes preparing agenda, timekeeping, dealing with conflicts, and recording and distributing minutes etc.
PMBOK Guide Page 386.