Which of the following is an explosion-related compound?

Ammonium nitrate when mixed with a hydrocarbon is recognized as an explosion-related compound due to its properties as an oxidizer that can enhance combustion. When ammonium nitrate is combined with hydrocarbons, it can create a sensitive explosive mixture. This compound is frequently used in applications such as mining and construction where controlled explosions are necessary to break rock and clear debris.

In contrast, concrete, silica sand, and calcium carbonate do not possess explosive properties. Concrete is primarily a construction material, silica sand is used in various industrial processes, including glass-making and as a filler, and calcium carbonate is commonly used in agriculture and as a mineral supplement. None of these substances have the same potential to create explosive reactions as ammonium nitrate mixed with hydrocarbons. Thus, the unique chemical interaction present in option B distinguishes it as the correct choice in relation to explosion-related compounds.