Contrasts are used in the advertisement to make taking a break look appealing (=P). The most obvious contrast in the picture is the contrast between the raging storm, the high waves and the quiet ocean, with a clear sky. When you look more closely, you’ll also notice a contrast between the mental state that the people are in. Those in the boats, in the middle of the storm, look distressed, worried and frustrated (= I). A huge juxtaposition if you compare them to the man on the island, who looks relaxed and peaceful. This contrast represents the real-life contrast between working & experiencing stress and taking a break & finally being able to relax. By comparing work with a storm, and taking a break with a tropical island, KitKat tries to make ‘taking a break’ look more appealing to their audience (= E).