Over the course of the morning, the innovative discussion process 14 a new form of collective effort that transformed the depth, scope, and quality of their discussion.
答案：(C) gave rise to
【句型】give rise to 字詞搭配「引發/產生」，表示這個創新的討論過程「催生了」一種新形式的集體協作；made up for（彌補）、kept track of（追蹤）、looked out for（留意）都不合。
give 你最熟的意思是「給」，所以 give rise to 看起來像「給……上升」，很難直接連到「引發」。這裡的 rise 是名詞，指「產生、興起」，give rise to sth 要整組當一個字記：造成、引發，後面多半接抽象的結果，例如問題、爭議、新的事物。
句子是 the innovative discussion process ___ a new form of collective effort：主詞是「討論過程」，受詞是「一種新形式的集體協作」——一個過程「產生出」一個新東西，這是明確的因果關係。下一句 The World Café was thus created.（世界咖啡館就此誕生），thus 回頭確認了前面講的正是「造成某物出現」。
made up for 是「彌補（損失、不足）」，後面要接被彌補的缺憾；kept track of 是「持續掌握（進度、動向）」；looked out for 是「留意、當心」。這三個的主詞通常是人，本句主詞是抽象的 process，一看就該起疑。
give rise to sth（引發、造成……）、make up for sth（彌補……）、keep track of sth（掌握……的動向）、lose track of sth（跟丟、失去……的蹤影或動向）、look out for sb（留意、當心某人）、collective effort（集體協作）。
In 1995, a group of business and academic leaders met at the home of Juanita Brown and David Isaacs in Mill Valley, California. None of them had any idea they were about to create a social innovation that 11 rapidly around the world.
The group was supposed to have a large-circle discussion in their beautiful garden. Unfortunately, it started pouring. With their plan 12 by the rain, the two dozen participants squeezed into the living room. They broke into small, intimate table conversations, recording their insights on paper tablecloths. They periodically stopped their conversations to switch tables so the insights and ideas might 13 and deepen. As they moved from one table to another, they noticed new ideas emerging from the discussions. This in turn enriched subsequent rounds of conversation.
Over the course of the morning, the innovative discussion process 14 a new form of collective effort that transformed the depth, scope, and quality of their discussion. The World Café was 15 created. Since that rainy morning in Mill Valley, the World Café approach has been applied to multi-group discussions and cooperative actions by businesses, industries, and educational institutions around the world.