Answer:
I feel like it could be A, B or D but I believe it is B- Young children might not have extensive vocabularies.
Explanation:
I believe this is correct, if not let me know and I will fix it. I'm sorry in advance if it is incorrect.
The family doctor knows us for many years and continuously following his old medical treatment procedure with us which might not be any value to us but going for a specialist is the conservative first approach treatment rather a aggressive treatment.