Consider the following premises. If Karen were a police officer, then James is making tea. It is not sunny. If James makes tea, then it is sunny. It is cloudy. Can we infer the following from them? If we can, name the inference rule being used: Karen is a police officer.
 From the fact that if James makes tea, then it is sunny, and that it is not sunny we can infer that James is not making tea via modus tollens. Finally, from the fact that if Karen were a police officer, then James is making tea, and that James is not making tea we can infer that Karen is not a police officer via modus tollens, which contradicts that Karen is a police officer. Therefore, the answer is no.