At the End of the Day, a Manager Is Thinking

At the end of the day, a manager is thinking about an important meeting earlier in the day which had descended into a row with no decisions being made. The manager thinks that they should have been firmer and more decisive when chairing the meeting, and so reads a training manual entitled 'How to run an effective meeting.'
Which stage of Kolb's (1984) learning cycle equates to the manager reading this manual?

A) Concrete experience
B) Reflective observation.
C) Abstract conceptualisation.
D) Active experimentation