Choose the sentence with no spelling error.

A flash of lightning revealed the mountains.

The sentence with no spelling error is:

A flash of lightning revealed the mountains.

The word "lightning" is spelled correctly. The word "lighting" is the noun form of the word "light" and refers to the act of providing light.

The other sentences have the following spelling errors:

• "A flash of lighting revealed the mountains." - The word "lighting" should be "lightning".
• "A flash of lightining revealed the mountains." - The word "lightining" should be "lightning".
• "A flash of lightnings revealed the mountains." - The word "lightnings" is not a correct plural form of the word "lightning". The correct plural form is "lightning".