There is a safe way to measure illegal drugs in order to avoid overdosing. true or false

This is false because it mostly depends on the person and the degree of the addiction. People who constantly use can use higher doses so what's safe for them could kill someone who's never used it before. Usually when drug addicts overdose it's because they push themselves to the limit by taking more and more since the old dose is not enough.

The answer would be d. most contraceptives are effective when used properly