Final answer:
The co-founder of the Anglo-European College of Chiropractic is not listed in the provided multiple-choice options. Individuals like Julie Bowers and Boyd Campbell are associated with other institutions and not related to this question.
Step-by-step explanation:
The co-founder of the Anglo-European College of Chiropractic in Bournemouth, England is not among the names provided in the multiple-choice options (A) Dorothy Clark, (B) Elizabeth Bennett, (C) Ruth-Ashworth Cleveland, (D) Nell Williams. While these names may represent individuals in other academic or professional contexts, such as Julie Bowers from East Tennessee State University or Boyd Campbell from the Southwest College of Naturopathic Medicine and Health Sciences, they are not directly associated with the founding of the aforementioned chiropractic college.