What's inside the apartment: The apartment consists of a bedroom, a bathroom, a living room, and a kitchen. 
In the bedroom, there is a coffee table with a wine glass on it. 
The bathroom features a cabinet, which is currently empty. 
The living room is furnished with a cabinet, a coffee table, a sofa, and a desk. The cabinet is filled with two cupcakes, two wine glasses, two books, a remote control, two apples, three water glasses, and two bottles of wine. Additionally, two water glasses and a remote control are placed on the coffee table. 
The kitchen is equipped with a fridge, a stove, a kitchen table, and a microwave. Inside the fridge, there is a cupcake, two apples, and a dish bowl. The stove contains a plate and a salmon. The microwave houses a bag of chips, a cupcake, and two condiment bottles. 
Actions taken by Michael: Michael is situated in the bedroom. He proceeds to the kitchen, advances towards the microwave, opens it, and subsequently closes it. He then opens the fridge, closes it, and makes his way to the living room, finally approaching the cabinet. 
Question: If Michael think there isn't a book inside the cabinet, which one of the following statements is more likely to be true? (a) Michael has been trying to get a book. (b) Michael has been trying to get a salmon. Please respond with either a or b.