A two-dimensional array has been defined to hold the quantity of each of 5 different healthy snack products sold in a tuckshop during the past three months. The array is declared as follows: sales = [ [ 0, 0, 0, 0, 0], [0, 0, 0, 0, 0], [0, 0, 0, 0, 0] ] Indexing of the array starts at 0, so the sales of the first product in the second month is held in sales[1][0].
