The correct option is B Land Biome
Large ecosystems are called 'Biomes'. These biomes contain many small ecosystems. Earth itself is a vast ecosystem. Two types of biomes are found on the earth are Land biomes and Aquatic biome. The biomes which exist only on land are called land biomes. Eg. Grasslands, evergreen forests, deserts, Iceland ecosystem, ecosystems in Taiga, tropical rainforests etc.