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Answer : 1 Veins Explanation : Answer: A) Veins Explanation: Veins carries Blood back from the body parts to the Heart. We know that The circulatory system of our body is a loop. The Heart is the pump, the arteries and their smaller branches (arterioles) carry oxygen rich blood all through your body and the veins and their smaller branches (venules) carry oxygen depleted blood and waste products back.

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