Correct Answer: Pronounciation

Solution : The incorrectly spelt word is the fourth option.

Explanation: The correct spelling is pronunciation. It refers to the way in which a word is spoken with emphasis on the correct sounds and articulation. The use of ou instead of u constitutes a spelling error.

The meanings of the other options are as follows:

• Believe: It means to accept something as true or to have faith or confidence in something or someone.

• Audible: It means capable of being heard or loud enough to be heard.

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• Throat: It refers to the passage in the neck that leads to the stomach and the lungs, used for swallowing and breathing.