What's inside the apartment: The apartment consists of a bedroom, kitchen, living room, and bathroom. 
In the bedroom, there is a coffee table with three wine glasses, two water glasses, and a dish bowl on it. 
The kitchen is equipped with a stove, kitchen table, microwave, and fridge. Inside the stove, there is a cupcake and a plate. The microwave contains a salmon, a condiment bottle, and a bag of chips. The fridge houses a dish bowl, an apple, and a salmon. 
The living room features a coffee table, a cabinet, a sofa, and a desk. The cabinet is filled with an apple, a dish bowl, a remote control, a cupcake, a bottle of wine, a condiment bottle, and a water glass. 
The bathroom has a cabinet, which is currently empty. 
Actions taken by Robert: Robert is situated in the living room. He strides towards the cabinet, opens it, and subsequently closes it. He then proceeds to the kitchen, approaches the stove, opens it, and then shuts it. Following this, he heads towards the bathroom, walks up to the bathroom cabinet, opens it, and then secures it shut. Finally, he returns to the kitchen, moves towards the microwave, and prepares to open it. 
Question: If Robert has been trying to get a bag of chips, which one of the following statements is more likely to be true? (a) Robert thinks that the bag of chips is inside the microwave. (b) Robert thinks that the bag of chips is not inside the microwave. Please respond with either a or b.