Fines and -----I think these are the words that go in the blank.
Scraping your nails on the chalk board electrocutes your brain.
tbh im not sure if this is right and I'm sorry if it is wrong
The correct option is HARD PLEASURE.
An oxymoron refers to a compound word (two words written together) whose meaning are contradictory to each other. The two words that are used together in oxymoron usually have completely opposite meaning and authors usually use it to engage the interest of the readers. For instance in the correct option mentioned above, hard and pleasure has opposite meanings. Other examples of oxymoron are: same difference, bitter sweet, alone together, open secret, original copy, etc.