The question asks for the correct six-membered pyranose form of a given sugar $[X]$, but the crucial structural information is missing:

1. The structure of sugar $[X]$ is not shown.
2. The drawings for options A, B, C, D are also not provided.

Without these figures, it is impossible to determine:

• whether the sugar is an aldohexose or ketohexose,
• the configuration at each chiral center,
• whether the required pyranose form is $\alpha$ or $\beta$,
• and which option matches the correct Haworth projection.

What would normally be done

To solve such a question, we would:

1. Identify the open-chain/Fischer structure of sugar $[X]$.
2. Determine whether it forms a pyranose ring.
3. Convert Fischer projection to Haworth projection using the rule:
   • for D-sugars: groups on the right in Fischer go down in Haworth, groups on the left go up;
   • $\ce{CH2OH}$ is typically up for D-series.
4. Check the anomeric OH:
   • $\alpha$: anomeric OH trans to $\ce{CH2OH}$
   • $\beta$: anomeric OH cis to $\ce{CH2OH}$
5. Match with the correct option.

Conclusion

Since the actual sugar structure and option figures are absent, the answer cannot be derived from the provided information alone.

The stored correct answer is D, but I cannot independently verify it from the text-only prompt.