A.there are provisions of WORDY AND REDUNDANT;they指代不明,因为上文有主句嵌套从句,主句从句中都有复数名词;
C.under provisions of the new maritime code位置不好,有修饰sea areas的嫌疑;Ron说无论comma-ing是啥作用,-ing都应该能让主句主语做agent,而stimulating主语不应该是tiny islets,no sense,所以comma-ving不合适;
islet==》小岛
unexpected finding: some economists spoke of a "productivity paradox"