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.
Answer:
The correct answer is B. anxiety
Answer:
a. Valid
b. Invalid
c. Valid
Explanation:
Follow me and Mark me brainliest please
