请教1个句子替换题问题在上方In the second case, pollinators (insects, bird

请教1个句子替换题
问题在上方In the second case, pollinators (insects, birds) obtain food from the flowering plant, and the plant has its pollen distributed and seeds dispersed much more efficiently than they would be if they were carried by the wind only.我选的是D，但是A没有more efficiently 这个概念啊，而且reproduction在原话中有同意词吗，纠结了半天没看出来