The correct answer is C. The small intestine is responsible for absorbing nutrients from the food we eat. The villi are small, finger-like projections that line the inside surface of the small intestine and help to increase its surface area. The increased surface area of the villi allows for more efficient absorption of nutrients. The large surface area of the villi is lined with tiny finger-like projections called microvilli, which further increase the surface area and help to absorb nutrients.
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