Final answer:
Cultural competence is the skill that Wilhelm possesses when working with clients in a diverse community.
Step-by-step explanation:
The skill that Wilhelm possesses when working with clients in a diverse community is cultural competence. Cultural competence refers to the ability to understand and appreciate the heritage, norms, and traditions of different cultural groups. It involves being sensitive to the unique needs and experiences of individuals from different backgrounds, and being able to provide effective and respectful support and treatment.