Figure a -Refer to Figure A. Which of the Following Is Correct

Figure A
-Refer to Figure A. Which of the following is correct?

A) A move from point G to point H would be desirable on efficiency grounds.
B) A move from point G to point H entails a higher level of income to future generations.
C) A move from point I to point J entails a higher level of income to future generations.
D) A move from point G to point I entails a similar level of income to future generations.
E) None of the above.