TOEFL Listening: TPO-TOEFL阅读TPO - _PC0962AK60LB1__N$

According to paragraph 1, which of the following is MOST likely to describe a bed in which seagrasses reach the surface of the water? A. The water is almost completely still. B. The bed often has major damage from strong waves or currents. C. The bed is generally no more than one square meter in size. D. Grasses form a mosaic of individual mounds.