Physiology of pulmonic ejection murmur and maneuvers to differentiate it. A) Murmur increases with inspiration; maneuvers include handgrip and squatting B) Murmur increases with expiration; maneuvers include Valsalva and standing C) Murmur decreases with inspiration; maneuvers include Valsalva and standing D) Murmur decreases with expiration; maneuvers include handgrip and squatting