Answer:
Hence correct option is b i.e 7.2 yuan.
Step-by-step explanation:
Given data;
candy bar cost is $1
Nominal exchange rate = 6 yuan equal to 1 dollar
Real exchange rate is = 1.2 dollar per 6 yuan
Therefore price for one candy at china will be

The price of candy bar at china is = 7.2 yuan
Hence correct option is b i.e 7.2 yuan.