Select from options: Continue writing the next sentence.

How to use a pendulum
Know that a pendulum is a weight hanging freely at the end of a string.
Before you start using a pendulum, you need to know what it is and how it works. Luckily, a pendulum is no more than a hanging weight allowed to swing back and forth.

Available choices:
(1). If you store a pendulum by its string on your porch, anyone who walks by will know you have a pendulum, which can cause immediate deaths. Lay a heavy book on the floor so that it sits flat.
(2). The string is attached to a fixed point so that only the weight and string are moving. Hold the end of pendant necklace or yo-yo between your fingers and move the " weight " at the bottom.
(3). It can be hung anywhere from one level of the sky to the next. Get your hands on a weighted pendulum.
(4). Pendulum apabinus pendulum staff staff is a medium pendulum and floats with one side as horizontal as the other if viewed from at an angle. Use the pendulum to increase your mobility in any given space.
Answer:
(2).