D would only notify stage changes, C would report to managers, not opp owners

I’m confused! The “right answers” on this question show B and C. Now, the question asks about notifying the Reps, not the management. Why wouldn’t you want to notify the Reps??? I’ve seen several questions here where the supposedly “correct” answers simply don’t make sense.

B. Turn on the Chatter feed settings that enable users to automatically follow records that they create. This setting will automatically follow any opportunity that a sales representative creates, ensuring that they receive updates and notifications about the opportunity in their Chatter feed. This will make it easier for sales representatives to stay informed about the status of their opportunities and take action when necessary. D. Turn on the Chatter feed settings that enable stage notifications to opportunity owners. This setting will send notifications to the opportunity owner whenever the opportunity progresses to a new stage. This will keep sales representatives informed about the progress of their opportunities and help them to identify potential problems or opportunities for closing.

B, D is correct