An analyst provides the following expected returns on two stocks for two possible overall market returns. Note that this information describes how changes in the given stocks' returns relate to associated changes in overall market returns. When the market returned 5%, stock A earned 3% and stock B earned 5%. Alternatively, when the market returned 20%, stock A earned 35% and stock B earned 10%. What are the betas of stocks A and B respectively?

a. 2 and 0.7

b. 0.2 and 1.4

c. 4 and 1.4

d. 2.13 and 0.33