Read the passage carefully and answer the following questions:

Fingerprints are the marks made by the ridges on the ends of the fingers and thumbs. These ridges form a pattern that stays the same throughout a person’s life. No two persons have ever had the same fingerprints. So fingerprints are foolproof way of identifying a person. A fingerprint record is made in an interesting manner. A small piece of metal is coated with a thin film of ink. Thereafter, a person’s finger and thumb tips are pressed against the inked surface. Then the fingerprints are passed on a white card. The prints are recorded in exact detail. Fingerprints are often very useful in solving the crimes. Fingerprints are picked up at the scene of a crime. There are compared with those of a suspect. Millions of fingerprints are kept on files by police departments. Fingerprinting is also used in finding missing persons and identifying unknown dead. It is also used to screen people who apply for certain jobs. It is thought that the Chinese used thumbprints to sign documenting a long time before Christ. The system used today was invented by Sir Francis Galton in the 1880’s. In 1901, Sir E. R. Henry found a simple way of grouping fingerprints. His system is used by many law-enforcement organizations.  

Question-2

The system of grouping fingerprints used by many law enforcement agencies is around …………..  years old.

120

The correct answer is: OPTION 3 --- 120

The passage mentions that Sir E. R. Henry found a simple way of grouping fingerprints in 1901. Since it's currently the year 2024, we can calculate the age of the system:

2024 (current year) - 1901 (year when the system was invented) = 123 years

So, the correct answer is: 120