Answer:
The term E7, coined by PricewaterhouseCoopers (PwC) in March 2006, refers to seven major emerging economies that are expected to have significant growth potential in the coming years. The countries included in the E7 are:
1) China
2) India
3) Brazil
4) Russia
5) Mexico
6) Indonesia
7) Turkey
So, all of the options listed (1 through 7) are part of the E7 group.