I think it is c. A public service announcer.
Tips are considered as 'advice, counsel, ideas'. Tips are things that help people to do the right thing. So for example, I would give my sister a tip or an idea on how to work out a word problem. That is what the word 'tip' would be considered as.
One - Uni
Epi - above
Anti - against
Para - around
Twisting your ankle real bad if it falls in a hole.