ACCorDing to thE pAssAgE, All oF thE Following ArE ADvisABlE to olDEr ADults For A FitnEss progrAm ExCEpt ______. A.wEAring AppropriAtE Clothing AnD shoEs B.BEing mEntAlly rEADy For physiCAl ExErCisEs C.inCluDing pErioDs oF wArm-up AnD Cool-Down D.AvoiDing Any prEssurE to thEir hEArts