A. A fact that elaborates on the point of the writing.
ALL OF THE ABOVE! All include human activity
I think it's D. Adalya and Declan
Do you have to write a paragraph for each one
C.
The door is made of glass, which is an example of non-porous surface.
Ninhydrin is one of the most widely used reagents for chemical development of fingerprints on porous surfaces.
The correct answer would be C. Hope this helps.