Question 102
David thought of a three-digit natural number with three different digits. He replaced each digit of this number by a letter and obtained the word $E N A$, which represents his number. He noticed that his number satisfies $c \cdot E N A = 2331$, where $c$ is some natural number. What is the value of the number $c$?
(A) 3
(B) 7
(C) 9
(D) 21
(E) 37
(A) 3
(B) 7
(C) 9
(D) 21
(E) 37