Use filler words like ummmm, like, so, kinda, or such. Faltering on her words, forgetting things, or not saying things with confidence wouldn't help either. Also, do not loose eye contact with the people even if you only occasionally look up, it makes you look nervous and like you don't know what you're talking about.
They are drugs that are <span>easy to get and ARE usually addictive</span>
Answer:
No. This is not more secure.
Explanation:
this is not more secure than having all of Carol, bob and Alice having the same key.
alice would be able to know Carol's key for her to be able to verify the answer Carol gave to a challenge by her. she would also have to know bob's key to do the same.
any of these 3 would have to know someone else's secret key to verify answers to any challenge.
the challenge is to know the secret keys if the other two and if done, decryption can easily be done and they can impersonate.
A or b i think hope it helps good luck and i hope it helps