Dynamic Programming·DP on Two Sequences·CoreThe first row and columnAn edit distance grid is being initialised before the main loop.What goes in row 0 and column 0?AZero throughout, because no characters have been compared yetBThe length of the other string, the same value in every cellCA one in the very first cell and zeroes everywhere else, marking out the starting pointDThe index itself, since turning a string into an empty one costs one edit per characterCheck answer