What are the different types of artillery ammunition?

The correct choice highlights the various types of artillery ammunition that are commonly used in military operations. High-explosive ammunition is designed to create a significant blast effect and is effective against personnel and light fortifications. Smoke ammunition is utilized for obscuring visibility on the battlefield, providing cover for troop movements or disorienting the enemy. Illumination rounds serve the purpose of lighting up the battlefield at night or during low visibility conditions, allowing for better situational awareness. Guided projectiles represent a more advanced technology that allows for precision strikes on targets, thereby increasing effectiveness and reducing collateral damage.

This answer underscores the essential functions of different types of artillery ammunition in modern warfare, focusing on their operational roles rather than broader categorizations like chemical or nuclear, or focusing on attributes like guidance or ballistic characteristics.