Answer: Brownian motion. This is the motion of small objects (like pollen) that appear to jiggle around while sitting in a drop of water. You can view this motion under a microscope.
Explanation:
B. To indicate whether the library owns a particular book
The tone of this article is highly critical towards those who complain about the challenges and adversities that life brings upon them, or that they bring upon themselves, and, instead of seeing them as opportunities to surpass themselves and even excel, they focus on feeling sorry for themselves, and expect others to feel the same way about them. They adopt a conformist attitude that might be reflecting a lack of confidence or a limited capability. Furthermore, the tone of the article is outspoken yet encouraging. Life may not be fair, and it is certainly not easy, particularly for some people, but a positive attitude and personal drive can go a long way to make the most out of it.
I’m pretty sure it’s B) tightly
