<span>A. Once the cavity reaches the dentin, it must be cleaned and filled.
the other options are opinions</span>
The correct answer is D. welcoming!
Have a nice day!
The modifier applies to the verb "type", so an adverb is required.
We can say "type fast", "type correctly", "type neatly", or even "type slowly" (not recommended in view of context).
The best treatment is behavior therapy hope this helps