What is the unit digit in {(6374)^1793 x (625)317 x (341^491)}? Select
A) 0	B) 1	C) 2	D) 3	E) 4
Unit digit in (6374)^1793 = Unit digit in (4)^1793   = Unit digit in [(4^2)^896 x 4]   = Unit digit in (6 x 4) = 4   Unit digit in (625)^317 = Unit digit in (5)^317 = 5   Unit digit in (341)^491 = Unit digit in (1)^491 = 1   Required digit = Unit digit in (4 x 5 x 1) = 0.   0)
<result>A</result>
What is the unit digit in {(6374)^1793 x (625)317 x (341^491)}?