Assertion (A): Fungi responsible for ringworms thrive well in skin folds such as those in the groin or between the toes.
Reason (R): Heat and moisture help these fungi to grow well.

Appearance of dry, scaly lesions on various parts of the body such as skin, nails and scalp are the main symptoms of ringworm infection. These lesions are accompanied by intense itching. Heat and moisture help these fungi to grow, which makes them thrive in skin folds such as those in the groin or between the toes.