If k is the sum of the digits of integer m, and m=11n, where n is an integer, which of the following must be true?  Options: A) k is a multiple of 6 B) The sum of the digits of k is divisible by 3 C) m is a multiple of 10k D) k is divisible by 2 E) k is a multiple of 8
m= 11n i.e n =1,2,3 ,4 etc or -1,-2.-3 ,-4 then m =11,22,33,44 or -11 ,-22 ,-33 ,-44 then k 2,4,6,8 or -(1+1) , -(2+2) , -(3+3) ,-(4+4) .   ans k is divisible by 2
<result>D</result>
If k is the sum of the digits of integer m, and m=11n, where n is an integer, which of the following must be true?