Pick an answer to check it
wrongNot this one · the answer is DExplanation
After monitoring is maintained, the benefits will gradually become apparent. 「显现」 fits best, so D is correct. A 「爆」 is too sudden; B 「逃」 and C 「吞」 have nothing to do with benefits appearing.
原文 · transcript
只要坚持筛选、补种和跟踪监测,预期的生态效益就会逐步显现。