Circular reasoning refers to a type of logical fallacy in which the argument begins with the premise that the reasoner is trying to end with. This means that the components of a circular argument are often logically valid because if the premises are true, the conclusion must also be true. However, the argument does not provide any useful information because the premises are in as much need for evidence as the conclusion.
The correct answer should be Katie insists that an office job would be less interesting than an outdoor job.
That is because this is an opinion of hers as someone might find it more interesting to work in an office, therefore insisting that it is the general truth is wrong.