Final answer:
Loops have a core in their ridge pattern.
Step-by-step explanation:
The general ridge pattern that will have a core is loops. Loops are characterized by a single delta and one or more ridges that enter from one side, recurve, and then exit on the same side they entered, forming a loop shape. The core is the point in the loop pattern where the ridges make a turn.
Learn more about Ridge patterns in fingerprints