Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to do the rumba [title] Clasp hands with your partner with elbows at a 90 degree angle. [step] As the leader, raise your left hand. As the follower, raise your right hand.

Ending1: [title] Take your left left-hand under a left elbow and draw it towards you. [step] As the follower, clasp hands with your right elbow. Ending2: [title] Turn the pointed hook of your right hand forward. [step] This opens up the back end of your fingers. Ending3: Keep your elbow close to your partner's elbow and almost touching it. Make sure your arm stays up and at a strict angle. Ending4: [title] Place your left elbow on top of your partner's right elbow. [step] Slip your right hand under your partner's elbow.

Answer format: ending1/ending2/ending3/ending4