Select the most appropriate option to fill in the blank.

There was a _____ accident last night and the inspector on deputy was unable to raise help when she called from the mountains.

serious

The most appropriate option to fill in the blank is serious.

The sentence is about a serious accident that happened last night and the inspector on deputy was unable to raise help when she called from the mountains. The word "serious" means important or significant. It is the most appropriate word to use in this context, as it describes the severity of the accident and the difficulty of getting help.

The other options are not as appropriate:

• Goofy means silly or playful. It would not be accurate to use "goofy" in this context, as the accident was not a silly or playful event.
• Gloomy means depressing or dreary. It would not be accurate to use "gloomy" in this context, as the accident was not a depressing or dreary event.
• Harsh means severe or unkind. It would not be accurate to use "harsh" in this context, as the accident was not a severe or unkind event.