If 21,394 + x is a multiple of 3, which of the following could be the value of x? Choose the correct option
A) 1 B) 2 C) 3 D) 4 E) 6
Sum of the digits of 21,394 is  2+1+3+9+4= 
<gadget id="calculator"> 2+1+3+9+4</gadget>
<output>19</output>
19   Now 19 is not a multiple of 3, the next multiple of 3 close to 19 is 21, which is 2 added to 19.   So the least number to be added to 21,394 is 2   2
<result>B</result>
If 21,394 + x is a multiple of 3, which of the following could be the value of x?