If integers ending in zero are excluded, what is the unit digit of the product of the even integers from 502 to 598, inclusive?	Choose the most appropriate option:
A) 4
B) 6
C) 8
D) 10
E) 12
502 x 504 x 506 x 508 =&gt; unit digit 4   512 x 514 x 516 x 518 =&gt; unit digit 4   592 x 594 x 596 x 598 =&gt; unit digit 4   So we have 10 numbers ending by 4 to multiply.   Given that 4 x 4 = 16, we have 5 numbers ending by 6 to multiply   Given that 6 x 6 = 36, we have 3 numbers ending by 6 to multiply   So the unit digit is 6   Answer: 6.
<result>B</result>
If integers ending in zero are excluded, what is the unit digit of the product of the even integers from 502 to 598, inclusive?