What is the difference between irony and sarcasm?

sarcasm sound like you mean the opposite to hurt people feelings, irony is the actual opposite

Irony = the expression of one's meaning by using language that normally signifies the opposite, typically for humorous or emphatic effect.

Sarcasm = the use of irony to mock or convey contempt

3 is blunder, i’m not sure about the last one but the first two look correct

explanation:

if you’re a fan of chocolate, every occasion is right for this treat. feeling down? eat some chocolate. celebrating? eat some more. want to show your valentine how special you think your sweetheart is? offer up chocolate!   people have been enjoying chocolate as a food, drink and medicine for thousands of years. the ancient maya and aztecs called chocolate kakaw and used it as medicine. they also made chocolate offerings to their gods. chocolate comes from the cacao (kuh-kow) tree, and its scientific name reflects its history. theobroma cacao translates to “cacao, food of the gods.” these days, chocolate is not just for deities. the treat has become popular around the world.