Which One of the Following Statements Best Describes a Difference

Which one of the following statements best describes a difference between weak and strong sustainability?

A) Strong, but not weak sustainability would maximize human welfare over time
B) There is no difference between strong and weak sustainability when one speaks of the
Substitutability of human capital for natural capital
C) Weak, but not strong sustainability would likely maintain the stocks of natural capital
D) Weak, but not strong sustainability would likely require government involvement
E) Weak sustainability is a Malthusian concept.