Which answer is correct?

Use `enumerate(my_list)`: `for i, val in enumerate(my_list):`. It yields (index, value) pairs.

— enumerate_user

Use `range(len(my_list))`: `for i in range(len(my_list)): val = my_list[i]`.

— range_len_fan

Use `zip(range(len(my_list)), my_list)`. Zip pairs indices with values.

— zip_everything

Use a counter variable: `i = 0; for val in my_list: ...; i += 1`.

— manual_counter