What is the unit digit in 8^100?	Select the correct option:
A) 0 B) 1 C) 6 D) 3 E) 5
Unit digit in 8^100 = unit digit in [(8^4)^25 ]
But unit digit in 8^4=6
unit digit 8^100= 6
Answer is 6
<result>C</result>
What is the unit digit in 8^100?