Difference between the System.Array.CopyTo() and System.Array.Clone()

Question

What’s the difference between the System.Array.CopyTo() and System.Array.Clone()?

Answer 1

The answers are confusing to me. When you say shallow copy, this means that they are still pointing to the same address. Which means, changing either one will change another as well.

So if I have A = [1,2,3,4] and I clone it and get B = [1,2,3,4]. Now, if I change B[0] = 9. This means that A will now be A = [9,2,3,4]. Is that correct?