Final answer:
If a Behavior Analyst (BA) receives a referral to work with an adult but has never worked with an adult before, it is important for the BA to seek additional training or supervision in adult behavioral analysis.
Step-by-step explanation:
If a Behavior Analyst (BA) receives a referral to work with an adult but has never worked with an adult before, it is important for the BA to seek additional training or supervision in adult behavioral analysis (C). Adults may have different needs and respond differently to interventions compared to children. The BA should engage in professional development opportunities to gain the necessary skills and knowledge to effectively work with adults. It is not recommended for the BA to decline the referral (A) or proceed with the same strategies used for children (B) as this might not address the specific needs of the adult.