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 a wine glass and a bottle of wine on it. 
The kitchen is equipped with a stove, kitchen table, microwave, and fridge. Inside the stove, there are two salmons. The microwave houses two condiment bottles and a bag of chips, while the fridge contains three apples and two dish bowls. 
The living room features a coffee table, cabinet, sofa, and desk. The cabinet is filled with three plates and two wine glasses. 
Lastly, the bathroom has a cabinet, which is currently empty. 
Actions taken by John: John is situated in the bedroom. He proceeds towards the kitchen, advances towards the microwave, opens it, and subsequently closes it. Following this, he heads towards the bathroom, approaches the bathroom cabinet, and is on the verge of opening it. 
Question: If John has been trying to get a water glass, which one of the following statements is more likely to be true? (a) John thinks that the water glass is inside the bathroom cabinet. (b) John thinks that the water glass is not inside the bathroom cabinet. Please respond with either a or b.