Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to graft an apple tree [title] Plant apple trees that are known to grow well in your area. [step] The rootstock must be hardy in your area. You can plant an apple tree from seedling to use as rootstock, but you will have to wait several years to create a sturdy plant.

Ending1: [substeps] Rootstock must be suited to your climate and local insects. [title] Opt to purchase rootstock in place of seedlings. Ending2: [substeps] Choose the best fruit and vegetable variety for the rootstock, as fruit and vegetable varieties can be difficult to grow. In your area, full sun is usually a good option, provided it is outdoor and not hot and shaded. Ending3: You do not have to plant your own rootstock before starting. [substeps] Apple trees native to the northern hemisphere usually sprout beautifully once planted. Ending4: Not all apple trees grow well in your area. For example, apple trees grow best in sopine-flower beds and in queen anne's lace gardens.

Answer format: ending1/ending2/ending3/ending4