Answer:
Harzadous
Step-by-step explanation:
A. is incorrect
It is incorrect because the definition in the question above cut across the different kinds of matter states that we have. According to the definition, these wastes could either be solid, liquid or gaseous
B. Harzadous is correct
It fits in all criteria as stipulated by the question. Something harzadous could be solid, could be a liquid or gaseous. The main point is that it is harmful enough to cause some level of discomfort
C is incorrect
Domestic sources are not the only waste sources. Industrial sources are also routes through which harmful substances are released into the environment