Answer:
The answer is a. Improves the positive feelings of the speaker in some contexts.
Step-by-step explanation:
The “fake it until you make it” approach to public speaking can build confidence in speakers who are not confident enough; the approach works to a great extent if such speakers continuously get themselves out there and always say something, no matter the situation; with time the subconscious, which can’t really distinguish between real and fake, would begin to believe and adapt, and become naturally confident enough to always maintain the positive feelings that great speakers radiate.