What is the unit digit in (4137)754?
Choose the correct choice from the following answers:
A) 1
B) 3
C) 7
D) 9
E) 6
Unit digit in (4137)754 = Unit digit in {[(4137)4]188 x (4137)2}   =Unit digit in { 292915317923361 x 17114769 }   = (1 x 9) = 9   Option 9
<result>D</result>
What is the unit digit in (4137)754?