Intermittent claudication is defined as

Intermittent claudication occurs as a result of anaerobic muscle metabolism and is classically described as debilitating cramp-like pain felt in the muscles that is: * reliably brought on by walking; * not present on taking the first step (unlike osteoahritis); * reliably relieved by rest both in the standing and sitting positions; usually within 5 minutes So the best answer is c. Reference: Bailey and love, 27th edition, page number:943