Britain's return to the gold standard caused years of high unemployment, because a. the return implied a large real appreciation of the currency. this meant british goods became more expensive relative to foreign goods, resulting in the is curve shifting to the left as net exports decreased. b. it implied that britain suffered from a real depreciation and that the equilibrium output was lower and the equilibrium unemployment was higher. c. it implied flexible exchange rates between countries and that britain had to suffer from a real depreciation. d. the return implied a large nominal appreciation of the currency. this meant british goods became more expensive relative to foreign goods, resulting in the is curve shifting to the right as net exports decreased.