Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to grow pawpaws [title] Obtain 2 sets of pawpaw seeds from a local or online supplier. [step] For fruit production, pawpaws must pollinate each other. However, they are self-incompatible, meaning each tree must be cross-pollinated by another pawpaw that is unrelated to it.

Ending1: Head to a local horticulture store in your area for pawpaw seeds. You can also purchase them from online suppliers. Ending2: [title] Purchase pawpaw seeds from a local supplier to keep them crisp and green. [title] Examine the cuttings and determine if they are fresh. Ending3: [title] Pollinate the pawpaw seeds with a fork. [step] After the seed has been pollinated, use the fork to plump the pawpaw. Ending4: [title] Submerge your pawpaw. [step] Position the large, flat paws facing down in a shallow bowl of soil.

Answer format: ending1/ending2/ending3/ending4