Please choose the correct ending to complete the given sentence: Philosophy and Religion: [header] How to be a ghost hunter [title] Purchase an emf meter. [step] Emf meters can detect electrical disturbances and electromagnetic fields. It's a common theory that ghosts can manipulate energy.

Ending1: You can obtain an emf meter from your local electrical shop or from a college campus laboratory. Emf meters last 20-40 years and are easily the cheapest to buy. Ending2: Fortunately, you can detect this by using a meter on your dodgeball weapon. [substeps] Emf meters can also be purchased pre-made with step-by-step instructions. Ending3: Since ghosts can perform such energy shifts, they're great for blind spots. If you don't have a good emf meter, purchase one online. Ending4: Take notice of the average reading in any given area of the house. If the meter starts to spike, it might be a sign of ghostly activity.

Answer format: ending1/ending2/ending3/ending4