The figure below displays two different utility-maximizing bundles for an individual. Assume the individual's utility function is given by the following expression:

U(q1,q2)=q^a₁ +q^b₂

where a and b in the utility function above are constants. Which one of the statements below can explain the individual's utility maximizing bundle moving from bundle A to bundle B in the figure below:

a) The price of good 1 increased and a=1 & b=1/2

b) The price of good 2 increased and a=2 & b=1

c) The price of good 1 increased and a=2 & b=1

d) The price of good 2 increased and a=1 & b=1/2

e) The price of good 2 increased and a=1 & b=2

f) The price of good 1 increased and a=1 & b=2