What's inside the apartment: The apartment consists of a bedroom, kitchen, living room, and bathroom. 
In the bedroom, there is a cabinet and two desks. The cabinet contains a bag of chips, a condiment bottle, two books, and a water glass. 
The kitchen is equipped with two tables, eight cabinets, a stove, a dishwasher, a microwave, and a fridge. An apple and a bag of chips are on one of the tables. The first, second, third, fifth, sixth, and eighth cabinets, from left to right, are empty. The stove houses a plate and a cupcake, while the dishwasher contains a water glass. The microwave holds a condiment bottle. The fourth cabinet contains an apple, and the seventh cabinet has a bottle of wine and an apple. The fridge is stocked with two plates and a salmon. 
The living room features a coffee table and a sofa. The coffee table is adorned with two dish bowls, a plate, and a bottle of wine. A cupcake, a wine glass, and a water glass are on the sofa. 
The bathroom is fitted with a cabinet, which is currently empty. 
Actions taken by Mark: Mark is situated in the bathroom. He proceeds to the kitchen, strides towards the second kitchen cabinet, opens it, and subsequently shuts it. Following this, he moves towards the seventh kitchen cabinet, preparing to open it. 
Question: If Mark has been trying to get a plate, which one of the following statements is more likely to be true? (a) Mark thinks that the plate is not inside the 7th kitchen cabinet. (b) Mark thinks that the plate is inside the 7th kitchen cabinet. Please respond with either a or b.