Goal and options: how do you preheat an oven?
output answer: turn it on to warm up before you put the food in.

Goal and options: To prepare the scallions for kimchi,
output answer: place washed scallions on a cutting board, cut off the end roots with a knife and discard, the chop the remaining part into 1/4" pieces.

Goal and options: how ot jump a car to start
output answer:
Take out your jumper cables. ... Place both vehicles in Park or Neutral and shut off the ignition in both cars. Attach one of the red clips to the positive terminal of your battery. Attach the other red clip to the positive terminal of the other car. Do the same with negative and then start your vehicle while other vehicle is running