When working with numbers that range from 1 to 30, only three Roman numerals are required, used in various combina-tions. Which of the following choices of Roman numerals is correct?

A. I, X, L
B. I, V, X
C. I, V, C
D. V, X, M

b
Rationale: The Roman numerals I (1), V (5), and X (10) are the only ones required to be used to make up the numbers 1 through 30. None of the other choices can be correct because they contain Roman numerals that are larger than 30. ("L" equals 50, "C" equals 100, and "M" equals 1,000.)