Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to repot bonsai trees [title] Determine when your bonsai needs to be re-potted. [step] The primary reason for re-potting a bonsai tree is when its root system begins to choke itself off. To determine whether or not this is happening, gently lift the entire tree from its pot.

Ending1: Like wood planters, the roots of bonsai trees are susceptible to root rot and root diseases. [substeps] Consider if the tree might be too young to be repotted. Ending2: If the roots have begun circling around themselves, you need to re-pot. Eventually the roots will grow thick enough to displace all of the soil within the root system, and the tree will starve. Ending3: If you see any small roots sprouting up from the root mass, it is a sign that your bonsai needs repotting. [title] Recognize that the roots actually make a wiggling motion. Ending4: If it resists repotting, you have a new, healthy bonsai tree bearing fruit. Avoid repotting several lcd trees while it's still in its root system.

Answer format: ending1/ending2/ending3/ending4