Answer:
The correct answer is option a.
Step-by-step explanation:
Fingerprints are the impressions of the finger ridges which are developed on the hard surface when finger comes into contact with the surface.These impressions are formed due to secretion of oils and sweats form our fingers.
Latent prints are those which remains hidden and special techniques like light and fingerprint powders are used to observe them.
A patent fingerprint is a visible image of a person's fingertip left on a surface as a result of residue on the finger. A patent fingerprint can be created by blood on someone's finger, another liquid such as oil or ink, or by dirt.
Plastic prints are those which appear in three-dimensional view. These prints can be seen on the putty, cheeze, soap and wax etc.