15 i think it's d but i'm not sure

Read the scenario below and answer the question that follows. bailey is plagued with sleep problems at least a couple of times a week. she often feels tired at work and doesn't do her best work because she is "just so tired." according to the lesson, it can be said that adults have some of the same problems with sleep that bailey does. a. few b. many c. no d. all

Pleas give me brief explanation about deterministic model in advanced hydrology

You must all emergency vehicles using a siren or flashing lights. a. honk to make your position known to b. follow c. yield the right-of-way to d. drive around