Final answer:
Individuals with body dysmorphic disorder (BDD) may obsess about a defect in their appearance that is entirely imaginary.
Step-by-step explanation:
Statement a) Individuals with BDD may obsess about a defect in their appearance that is entirely imaginary. This statement is true. Body dysmorphic disorder (BDD) is a mental health disorder characterized by a preoccupation with perceived defects or flaws in one's appearance that are not observable or barely noticeable to others. People with BDD may spend hours a day thinking about their appearance, engaging in excessive grooming or checking behaviors, and seeking reassurance from others.