Which of the following describes a chronic effect?

A chronic effect is characterized by symptoms that develop over an extended period, often as a result of long-term exposure to a hazardous substance or condition. This contrasts with acute effects, which are immediate and arise suddenly after exposure. Chronic effects can manifest after repeated or prolonged interaction with toxic substances, leading to conditions that may take years to fully develop or become noticeable.

While acute effects may include symptoms that appear suddenly or decline quickly, chronic effects imply a gradual build-up of health issues that may not present themselves until significant time has passed. Thus, the correct choice appropriately reflects the nature of chronic health effects in contrast to other health conditions that are immediate or short-lived.