Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to freeze zucchini [title] Use ripe, fresh zucchini. [step] Use firm, ripe zucchini with a uniformly dark color. The color of the zucchini is a good indication that it has not become overripe.

Ending1: [substeps] The zucchini should have no brown spots, brown marks, or discolored spots. If the zest is blackening or has become yellow, throw away the zest. Ending2: [substeps] Remove the flesh and seeds from the zucchini to see if there are any still visible. If the zucchini is still green, you're not finished. Ending3: Like any other tomato, zucchini will turn brown as it cools. [title] Cut away hard, tender skin with a sharp paring knife. Ending4: [substeps] Do not use zucchini that is pale or soft. Also avoid zucchini that has bruises, deep scratches, or rotted spots.

Answer format: ending1/ending2/ending3/ending4