10) Consider the following information on Mexico's trade. Thirty percent of the trade is conducted with country A; 35% of trade with country B, 15% of trade with country C, and 10% with country D. If the peso appreciates 10% against country A, depreciates 30% against country B, and depreciates 15% against country C and appreciates 20% against country D, then the effective trade-weighted real exchange rate experiences a

a) 6.75% appreciation

b) 18.75% depreciation

c) 6.75% depreciation

d) 18.75% appreciation