Correct Answer: commonplace

Solution : The correct choice is the fourth option.

Mundane refers to something ordinary, routine, or lacking excitement. A synonym for "mundane" is "commonplace", which denotes something that is ordinary or unremarkable.

The meanings of the other options are as follows:

• Exemplary means serving as a model or example; outstanding.
• Uncommon means not frequent or rare.
• Exclusive means restricted or limited to a specific group, not including everyone.