Which novelist, who also worked as a wartime intelligence officer, set much of his work in the 'Greeneland' of moral ambiguity, including The Power and the Glory?

• A Graham Greene ✓
• B John le Carré
• C Eric Ambler
• D William Golding

Graham Greene's novel The Power and the Glory (1940) follows a 'whisky priest' in Mexico during a period of religious persecution; it was condemned by the Vatican but later praised.