Brad Carlton operates Carlton Collectibles, a rare-coin shop in Washington, D. C., that ships coins to collectors in all 50 states. Carlton also provides appraisal services upon request. During the last several years, the appraisal work has been done either in the D. C. shop or at the homes of private collectors in Maryland and Virginia. Determine the jurisdictions in which Carlton Collectibles has sales tax nexus, assuming these states have enacted Wayfair legislation. (You may select more than one answer. Single click the box with the question mark to produce a check mark for correct answers and double click the box with the question mark to empty the box for wrong answers. Any boxes left with a question mark will be automatically graded as incorrect.)