All are warning signs of cancer, except:

Correct option is C

Warning signs of cancer include changes in size of a lump, hoarseness of voice, unexplained weight loss, bleeding, and non-healing wounds. A wart or mole by itself without any change is not a warning sign unless it shows abnormal changes such as bleeding, color change, or rapid growth. Explanation for each option: (a) Change in size of lump: Incorrect. An increase in size of any lump is a classic warning sign suggestive of possible malignancy. (b) Hoarseness of voice: Incorrect. Persistent hoarseness can be a warning sign of throat or laryngeal cancer. (c) A wart or a mole: Correct. Presence of a normal wart or mole is not by itself a warning sign unless it shows changes like ulceration, bleeding, or rapid growth. (d) Unexplained weight loss: Incorrect. Significant unintended weight loss is a general warning sign for many types of cancers.