سوال ۸۱ کنکور ارشد مدیریت کسب‌وکار (MBA) ۱۴۰۱

Choose the best completion for blank 81.

Passage summary: Coral reefs sustain coastal livelihoods through harvesting, shoreline protection, and related work. Their accessibility lets women and children participate and helps children develop skills for future subsistence.

Sentence containing the blank: They often live (81) .......... the reef, and their livelihood revolves around the direct extraction, processing and sale of reef (82) .......... such as shell fish and seaweeds.