How to use roman numerals<br>Understand the concept of roman numerals. Roman numerals use fewer symbols than the number system you are used to. I is the number 1 (one), v is 5 (five), and x is 10 (ten), for example.
Can we infer the following?
The concept of roman numerals is simple for everyone. 

Options are: 1). Yes. 2). It's impossible to say. 3). No.
The answer is:
2).