The reason music with a simple recurring rhythm exerts a strong primordial appeal is that it reminds us of the womb environment. After all, the first sound heard within the womb is the comforting sound of the mother' s regular heartbeat. So in taking away from us the warmth and security of the womb, birth also takes away a primal and constant source of comfort. Thus it is extremely natural that in seeking sensations of warmth and security throughout life, people would be strongly drawn toward simple recurring rhythmic sounds. Which one of the following most accurately expresses the main conclusion drawn in the reasoning above? ["The comforting sound of the mother's regular heartbeat is the first sound that is heard inside the womb.", 'Birth deprives us of a primal and constant source of comfort when it takes away the warmth and security of the womb.', 'People seek sensations of warmth and security throughout life because birth takes away the warmth and security of the womb.', 'The explanation of the strong primordial appeal of music with a simple recurring rhythm is that it reminds us of the womb environment.']