Why does the indexing start with zero in 'C'?

Question

Why does the indexing in an array start with zero in C and not with 1?

Answer 1

The technical reason might derive from the fact that the pointer to a memory location of an array is the contents of the first element of the array. If you declare the pointer with an index of one, programs would normally add that value of one to the pointer to access the content which is not what you want, of course.