What will be the output of the following C code?
const char str1[]="ABCDEF1234567";
const char str2[] = "269";
len = strcspn(str1, str2);
printf("First matching character is at %d\n", len + 1);
const char str1[]="ABCDEF1234567";
const char str2[] = "269";
len = strcspn(str1, str2);
printf("First matching character is at %d\n", len + 1);
A. First matching character is at 8
B. First matching character is at 7
C. First matching character is at 9
D. First matching character is at 12
Answer: Option A
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