The correct option is A Lionel Robbins
Lionel Charles Robbins was a British economist, and prominent member of the economics department at the London School of Economics (LSE). A follower of William Stanley Jevons and Philip Wicksteed, he was influenced by the Continental European economists and became famous for his definition of economics as, "Economics is the science which studies human behaviour as a relationship between ends and scarce means which have alternative uses."