I believe its A. I could be incorrect though.
Patent fingerprints are made by a liquid or powder that sticks to the finger and then transfers to a surface, leaving an easily visible fingerprint behind. Substances that can leave patent fingerprints are ink, blood, dirt, flour, grease, etc.
Answer:
cognitive therapy is a type of psychotherapy to treat human mood disorders such as depression.
hope it helps!
A. chemical precipitation of minerals from seawater