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.
Haha , I am. I’m trying to see if I can actually answer any of these
The double bar ends the piece, in music.
Answer:
e
Explanation:
it includes all the above options
