The correct answer is: D. triggered
A flight is delayed when it does not depart at the scheduled time. There are many reasons why a flight might be delayed, including bad weather, mechanical problems, and security issues. In the case of bad weather, the delay is usually caused by the inability of the aircraft to take off or land safely.
The word “triggered” means “to cause something to happen.” In the context of the question, the bad weather triggered the delay of the flight. The weather conditions made it unsafe for the aircraft to take off or land, so the flight was delayed until the weather improved.
The other options are incorrect because they do not accurately describe the situation. The word “quickened” means “to make something happen faster.” In the context of the question, the bad weather did not make the flight happen faster. The word “released” means “to set something free.” In the context of the question, the bad weather did not set the flight free. The word “expedited” means “to make something happen more quickly.” In the context of the question, the bad weather did not make the flight happen more quickly.