Which of the following is classified as a Class A fuel?

Class A fuels are typically defined as ordinary combustible materials that can ignite and burn readily. These include items like paper, wood, and fabric. Paper, being an easily ignitable material with a low ignition point, fits squarely within this classification, making it a primary example of a Class A fuel.

In contrast, gasoline falls under a different category due to its flammability and volatility, making it classified differently as a Class B fuel. Titanium and aluminum, while they have specific uses in combustion scenarios, do not qualify as Class A fuels. Titanium can burn under certain conditions, but it is not considered a common combustible material in the context of standard fire classifications. Aluminum, while it can contribute to fires due to dust or shavings, does not ignite and burn like ordinary combustibles. Thus, paper remains the clear representative of Class A fuels, demonstrating the characteristics and classification principles that define this category.