"are running" is that singular or plural

Which of the following will most likely happen if the pancreas does not produce sufficient insulin? blood sugar will decrease because insulin lowers blood sugar when it rises too high. blood sugar will increase because insulin increases blood sugar when it falls too low. blood sugar will increase because insulin lowers blood sugar when it rises too high. blood sugar will decrease because insulin increases blood sugar when it falls too low.

While studying, lana reached her goal of reading half a chapter without interruptions. what should she do next?

In describing jimmy wells as the truest, most loyal fellow, what tone is conveyed