Authorities in Germany aim to expand an open-pit coal mine in Lutzerath, West Germany. which can lead to the demolition of villages for coal mining. A group of climate activists has presented in the area to protest against coal mining explorations and operations (see https:/www.washingtonpost.com/world/2023/01/17/germany-coal-village-mud/ B). Which of the graphs below depicts the externality of the coal mine exploration in Lutzerath? [a] (b) Supply Pricel Supply Price | (Private cost) (Private cost) Demand (Private value] Social value Demaric Social value (Private value) Quantity Quantity (c) (d) Social cost Pricel Supply Price | Supply (Private costy (Private cost) Social cost Demand (Private value) Demand (Pricate value) Quantity Quantity O Graph [by O Graph (d) Graph (c) O Graph (a]