39. Which of the following statements regarding stem cells is correct?
(1) Induced pluripotent stem cells can differentiate into any of the 3 germ layer cells.
(2) Cord blood stem cells are multipotent.
(3) Hypoxic condition in stem cell niches is necessary for maintaining sten cells in an undifferentiated state.
(A) (1)
(B) (2)
(C) (3)
(D) (1) and (3)
(E) All of above
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