The answer is b because it polar bears will be in a non fiction story and periodical is a magazine or newspaper published at regular intervals.
Answer:
irritated
Explanation:
irritated by the lack of attention, the frustrated customer began to shout his demand for a refund.
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.