Consider the following statements about the pillars of human development:

(A) Equity ensures that everyone, regardless of gender, race, income, or caste, has equal access to opportunities.
(B) Sustainability means that each generation should have the same opportunities as the previous one.
(C) Productivity refers to the ability of people to perform work without any improvement in knowledge or health.
(D) Empowerment comes from increasing freedom and capability, ensuring people can make choices.

Which of the above statements are correct?