The answer to this question is #2
Carbon monoxide detector in the home is a good idea "<span>to warn members of the household of smoke from a fire"
In short, Your Answer would be Option C, Last one
Hope this helps!</span>
In my opinion, the best answer among the choices listed is option B. Bioflavonoids are naturally occurring plant chemicals. From, the name "bio", these substances most likely comes from living organisms. Flavonoids that come from living organisms. Bioflavonoids are found in the rind of green citrus fruits and in rose hips.
