Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to break a glass with your voice [title] Prepare your glass shattering station. [step] Remember, success in this task will result in broken glass, so you might want to practice in a room with hard floors to make clean up easier. Choose a room with good acoustics and little to no echo.

Ending1: You'll also need a power outlet to plug in your amp if you've chosen to use a microphone, as well as a platform on which your glass and amp can sit. [substeps] If you plan on using your voice alone to shatter your glass, you'll only need a sturdy platform to place your glass upon. Ending2: [title] Insert the glass that you want to shatter. [step] The glass must be large enough to slide freely onto a metal plate (such as display or tabletop). Ending3: It is helpful to choose your glass breaking station because it is more dramatic. [substeps] This will show that you are confident about the result you wish for. Ending4: [substeps] You can try each of the following methods to break a glass. The most common means to break a glass usually involves slicing the glass in half lengthwise to create a " v " shape.

Answer format: ending1/ending2/ending3/ending4