The sentence describes the behavior of doctors in the emergency room.
The word “insensitive” means not showing concern for others’ feelings.
Let’s examine the options:
(A) Methodical – means systematic; not related to "insensitive".
(B) Insensitive – exact match and thus closest in meaning.
(C) Friendly – opposite of “insensitive”.
(D) Concerned – also the opposite in meaning.
Hence, option (B) is the correct answer.