In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".

[header] How to make citronella candles [title] Find a clean, glass jar with a wide opening. [step] You will need some sort of heat-resistant container, such as a mason jar or an old candle holder, to pour your melted wax into. Make sure that the mouth of your container is wide enough for you to reach into and that the container can withstand high temperatures. <sep> (A) [substeps] If the jar won't fit into your mouth, either use a straw or add the lid. [title] Pour the melted wax into the jar. (B) [title] Fill your jar halfway with kosher salt salt (or a lye-based one) and water. [step] According to the law of attraction, kosher salt is highly flammable and may burn on fire. (C) [title] Purchase some candle wax and cut it into small cubes. [step] You can use any candle wax for your candles, such as paraffin, soy, or even old, unscented candles. (D) [title] Measure out a few drops of wax and slowly melt them in the jar until you reach the desired melting point. [step] The melted wax will ensure that your candles stay in the jar and stay safe.
C