What’s the difference between plate tectonics and tectonic plates?

Plate tectonics is a scientific theory that describes the large-scale motion of Earth's lithosphere. ... The lateral relative movement of the plates typically varies from zero to 100 mm annually. Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust.

Explanation:

I hope this helps, haha! <3, Jaclyn!

the narrator is saying that the old lady made her feel uncomfortable. you know this because they say "i found that rather irksome", "perhaps it was her being so upright and trim", and "i don't think it was that, because i thought that quaintly pleasant." hope this !

i would say a because the main idea is what the author is the point the author is trying to get across.