What type of ammunition should you use in a firearm?

Using the type of ammunition recommended in the owner's manual is important for the safe and effective operation of a firearm. The manual will provide specific guidelines for which types and brands of ammunition are suitable for the firearm. Choosing the cheapest ammunition may result in malfunctions or damage to the firearm, and using a heavier ammunition than recommended can also be dangerous. It is always best to follow the manufacturer's recommendations for safe and optimal use of a firearm. Options A, C, and D are incorrect because they do not prioritize safety or consider the specific recommendations of the firearm's manufacturer.