A.I. Explanation:

Correct answer: transferred

Explanation: The word 'transferred' is a verb that fits grammatically as it describes the action of residue moving from one place to another. In this context, it aligns with the process of fingerprints being left on a surface, maintaining the logical flow of the sentence.

Meaning: 'Transferred' means to move something from one place to another, in this case, the residue from fingers to a surface.

Wrong options:

• laminated: 'Laminated' is an adjective that describes something that has been covered with a protective layer, which does not fit the action described in the sentence.
• activated: 'Activated' is a verb that implies making something active or operational, which does not relate to the process of leaving fingerprints.
• dragging: 'Dragging' is a verb that suggests pulling something along a surface, which does not accurately describe the action of leaving fingerprints.

Correct answer: contaminating

Explanation: The term 'contaminating' is an adjective that describes materials that can pollute or affect the purity of something. It fits grammatically and contextually as it describes the nature of the materials found in fingermarks, which are often unwanted substances.

Meaning: 'Contaminating' refers to materials that make something impure or unclean, in this case, the substances that can be found in fingerprints.

Wrong options:

• laminated: 'Laminated' is an adjective that refers to something that has been covered with a protective layer, which does not describe the materials in fingermarks.
• transferred: 'Transferred' is a verb that does not fit as an adjective to describe materials, making it grammatically incorrect in this context.
• dragging: 'Dragging' is a verb that does not describe a type of material and is therefore not suitable here.

Correct answer: locating

Explanation: The word 'locating' is a gerund that serves as a noun in this context, referring to the act of finding something. It fits grammatically and logically as it describes the challenge of finding latent fingerprints at a crime scene.

Meaning: 'Locating' means the act of finding or discovering something, in this case, the fingermarks.

Wrong options:

• laminated: 'Laminated' is an adjective that does not relate to the action of finding and is therefore inappropriate in this context.
• transferred: 'Transferred' is a verb that does not fit as a noun to describe the act of finding, making it grammatically incorrect here.
• dragging: 'Dragging' is a verb that implies pulling something along, which does not relate to the act of finding fingerprints.