The correct option is C A is incorrect but R is correct
Although the reasoning here is correct that narrowly utilitarian thinking calls for the conservation of biodiversity because humans derive countless direct economic benefits from nature, the oxygen that plants provide is not a tangible economic benefit. Even though a cylinder of oxygen costs more than 5000 rupees to produce, the oxygen cannot be directly obtained from plants, packaged and sold. Therefore, the conservation of trees because they produce oxygen is instead, a broadly utilitarian approach.