Who's the following three statements to answer this question:

1. The main difference between three forms of Market efficiency is that the definition of prices differs

2. Proponents of efficient market hypothesis

3. Strong form of EMH encompasses both the week and semi-strong EMH.

a.only 2 and 3 are correct

b.only 1 and 2 correct

c.2 correct

d.1 correct

e.3 correct