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.
Answer:
A. The first sentence describes an event and the second sentence explains an effect of that event
This one.
"No change came over the old face. As though vast calculations were going through her head, she watched all the pattern shifts."
The status of the scientist is that she watches the patterns shift.
