Correct Answer: Connoiseur

Solution : The correct choice is the third option.

In this case, the misspelt word is "connoiseur", which should be spelt as connoisseur, which refers to an expert judge in matters of taste, someone who has expert knowledge and keen discrimination in a particular field, often related to art, food, or culture.

The meanings of the other options are as follows:

• Diarrhoea: This refers to a condition characterised by frequent and liquid bowel movements.
• Pseudonym: This refers to a fictitious name used by an author or a pen name used by individuals to conceal their real identity.
• Perseverance: This refers to the persistence and determination to continue doing something despite challenges or difficulties.