Multi-choice problem: Continue writing the next sentence in this paragraph:

How to make a tequila popper 
Set up your shot glasses. 
Place the glasses on a bar or table, and measure the tequila into each glass. For a drink that isn't as strong, only use a quarter or half ounce (7.5 or 15 ml) of tequila.

Available options: (1). Do not add sugar or salt to the choice unless otherwise indicated by your recipe. It's all up to you how strong or weak you want your drinks to be.; (2). For a stronger drink, use a full ounce (30 ml). To make coffee tequila poppers, use a small serving glass instead of a shot glass.; (3). Each shot should be a bit larger than the tequila glass. Don't add more than a quarter ounce so it's the standard amount (about the size of a shot glass).; (4). For a fruity liquor, use a quarter ounce (0.9 ml) of maraschino cherry or orange juice. As for an acidic liquor, use a quarter ounce (0.3 ml) of lemon juice or lime juice.;
(2).