Certain hallucinogenic drugs
can be isolated from plant insecticides
are typically taken in large amounts
can cause convulsions and possibly death from an overdose
can only be positively determined through the use of a specific microcrystalline test
are typically of a class of compounds called alkaloids

I'd say D because certain synthetic hallucinogenic drugs can cause convulsions and possible overdose

Well if you pick a machine to work on and that's gonna be your exercise if you don't stick to that machine your muscle strength your muscle mass rather will change because you haven't been doing it you change something in your exercise routine which changes your body's form of dealing with things for example you might become weaker or stronger depending on what kind of exercises you do in whether or not the machine you picked actually your muscles grow.

21 savage bank account