Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to raise caterpillars until they grow into butterflies [title] Find a caterpillar. [step] You can find them in gardens or trees. [title] Get a container.

Ending1: [step] You can also build a nest from sticks. [title] Decide where to put the caterpillar. Ending2: [step] The container you use should be small enough to hold your caterpillar and its cocoon. [title] Put the caterpillar's cocoon inside. Ending3: [step] Make sure it is big enough so that your caterpillar can get in and out of it smoothly. [title] Take a piece of newspaper and wet it with water. Ending4: [step] A tupperware container or a small plastic bin will work. [title] Pick up the caterpillar with a leaf or cardboard.

Answer format: ending1/ending2/ending3/ending4