Omni- is the prefix meaning "all". An example would be omnivore, which is a person or animal that eats both plants and animals.
The answer would be hyperbole because it is an extreme exageration. I hope this helps! if you need the others defined let me know
The persuasive technique that is being used here is name-calling.
This means that this cereal company is using, usually fake news and no evidence to say bad things about the rival company, disregarding whether it is actually true or not. People will see this cereal ad and believe it, regardless of whether there are any evidence to prove the claims.
Explanation:
anu said told me are you going to the darbar let me join you