The sum of all distinct four digit numbers that can be formed using the digits $1,2,3,4$, and 5, each digit appearing at most once, is (A) 399900 (B) 399960 (C) 390000 (D) 360000
The sum of all distinct four digit numbers that can be formed using the digits $1,2,3,4$, and 5, each digit appearing at most once, is\\
(A) 399900\\
(B) 399960\\
(C) 390000\\
(D) 360000