Methyl- $\alpha$-D-glucoside and methyl- $\beta$-D-glucoside are

• A

  epimers
• Correct answer
  B

  anomers
• C

  enantiomers
• D

  conformational diastereomers.

Solution

Methyl- $\alpha-D$-glucoside and methyl- $\beta-D$ glucoside differs at $\mathrm{C}-1$, hence are called anomers.

Hence, the correct answer is option: 'B'.