How Did the Affordable Care Act Affect Medicaid

How did the Affordable Care Act affect Medicaid?

A) It ended most Medicaid benefits and instead provided them through the Affordable Care Act.
B) It ended all Medicaid benefits.
C) It required that Medicaid services be merged with Medicare.
D) It allowed states to expand Medicaid for low-income people.
E) It made Medicaid the centerpiece of health care in the United States.