The Bertillonage system was based on what?

A.
The crime a person committed

B.
Blood types

C.
Fingerprints

D.
Precise body measurements

D. Precise body measurements

D. Precise body measurements

The Bertillonage system was based on precise body measurements. To arrive at this answer, you can use several approaches:

1. Background knowledge: If you're familiar with criminal identification techniques, you may already know that the Bertillonage system was a method developed by Alphonse Bertillon. Thus, using background knowledge can help you determine that the system relied on precise body measurements.

2. Researching the Bertillonage system: By conducting a quick online search using a search engine or visiting reputable sources, you can find information on the Bertillonage system. Reading about the system's principles and processes will reveal that it emphasized the measurement of various body parts, such as height, forearm length, head circumference, and others.

3. Elimination method: By eliminating the options one by one, you can rule out incorrect answers and deduce the correct one. In this case, you can eliminate options A (crime committed), B (blood types), and C (fingerprints) since they are not associated with the Bertillonage system. This leaves option D (precise body measurements) as the correct answer.