The correct option is D favourably
The word 'adversely' refers to something harmful or unfavorable,
Option A, deeply refers to something intense.
Option B, favourably refers to doing something with approval.
Option C, badly is used to refer to something in an unacceptable or unpleasant way.
Option D, internally is used to indicate something within the surface.
Thus, according to the meaning, the word 'favourably' is the opposite of the word 'adversely'.