What is the following program doing?

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✪ Choose the correct option.

What is the following program doing? 


 void main()
 {
 int digit = 0;
 do
 printf ("%d/n", digit++);
 while (digit < = 9);
 }

A. Adding 9 integers
B. Adding integers from 1 to 9
C. Display any 9 integer
D. Display integer from 0 to 9