Passage Summary: We know human hair wigs need dry cleaning and that handmade parts are only on human hair; we need to prove that custom-fit wigs also need dry cleaning.

Conclusion: Every wig that is made-to-measure must be dry-cleaned.

Reasoning: Wigs with human hair require dry-cleaning, and handmade foundations are found only on human hair wigs.

Analysis: We have a conditional chain: Handmade Foundation -> Human Hair -> Dry-Clean. We are also told that Made-to-Measure wigs are medium-to-expensive, but we lack a direct link to the cleaning requirements. To guarantee the conclusion, we need a 'bridge' that forces all made-to-measure wigs into that dry-cleaning chain. Look for an assumption that connects 'Made-to-Measure' to either 'Handmade Foundations' or 'Human Hair' to complete the logical path.