Answer:
yes
Explanation:
If it is guranteed the key is only known to Alice and Bob and there is no risk of man in the middle attack or channel spoofing so we can achieve data origin authentication
IFLY is probably what it was.
There are many ways it cna illustrate kindness, such as making friends
with friendly people, keeping long distance relationships possible,
raising awareness of an event
Where all "the following" i can help you but you said which of the folllowing and ther no picture or anything?