Select the correct answer. Which textual evidence best supports the idea that moon dust is difficult to detect with the human eye? A. “Moon dust isn't like the stuff that collects on a bookshelf or on tables . . . .” B. “It’s so bad it even broke the vacuum NASA designed . . . .” C. “The first step is knowing how much is around at any given time.” D. “Apollo missions struggled to deal with damage done by lunar dust