(Solved): 7. When D-threose is treated with NaBH4, followed by acidic workup: (A) a 70:30 mixture of e ...

7. When D-threose is treated with ${\mathrm{NaBH}}_4$, followed by acidic workup: (A) a 70:30 mixture of enantiomeric alditols results. (B) a 50:50 mixture of enantiomeric alditols results. (C) a meso alditol is produced. (D) the product mixture contains two diastereomeric alditols. (E) an optically active alditol is produced.