Question

During which stage of the listening process would you pay close attention to the speaker’s words, actions, and body language? active involvement preparation evaluation taking notes

Answer 1

that is apparently wrong, so much for verified answer huh?

Answer 2

During evaluation. The best time to be completely attentive towards your co-speaker is when you're evaluating him with certain parameters.

If you're taking notes, you can't really be attentive towards the actions, body language, etc. Neither can you do that when you're preparing or when you're acively involved in the conversation. For that reason evaluation is the correct answer.