What best describes three common warning signs of cancer?

The correct choice accurately captures three significant warning signs of cancer. Sores that do not heal, unusual bleeding, and the appearance or thickening of a lump on the body are all critical indicators that warrant further medical investigation. Non-healing sores can indicate issues with the body’s healing processes, which may arise due to cancer affecting the immune system or the integrity of tissues. Unusual bleeding can be a sign of various cancers, as it may indicate abnormal tissue growth or changes in blood vessels. The appearance or thickening of a lump is particularly concerning, as it may signify a tumor or mass forming, which is one of the hallmark characteristics of cancer.

Understanding these signs is essential for early detection and prompt treatment, which can significantly improve outcomes. While the other options listed include symptoms that may occur in various health conditions, they are not as specifically indicative of cancer as the signs in the correct choice. Rapid weight loss can occur for many reasons and is particularly linked to various health issues beyond cancer. Frequent headaches may result from numerous non-cancer related causes as well. Persistent fatigue and weakness are also common symptoms that can stem from many health conditions, including stress or infections, rather than being direct cancer warning signs.