Not having a brand, or an FDA approval are warning signs.
Answer: D
Explanation: As a result of scarce resources, societies must answer three key economic questions: – What goods and services should be produced? – How should these goods and services be produced? – Who consumes these goods and services?
I was looking thru my old bio notes and I believe it’s caused by emphysema since it says that it’s caused by an irritant (like smoke)
Gazapacho hope this helps