It can most reasonably be inferred from the passage that until recently, the primary treatment for children
with selective mutism involved:
A. cognitive behavioral therapy centered around the
child's thoughts, beliefs, and attitudes.
B. six-hour days of classroom immersion with other
children.
C. having a familiar adult always remain nearby to
translate the child's thoughts.
D: trying to get the child to be less shy around adults
they trust before addressing other unfamiliar
social situations.