consider the following information on mexico's trade. 40% of the trade is conducted with country A; 35% of trade with country B, 15% of trade with country C, and 10% trade is conducted with country D if tge peso appreciates 10% against country A depreciates 30% against country B 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