I think the correct answer from the choices listed above is option B. The transition word that would best replace the underlined word would be however. It is <span>used to introduce a statement that contrasts with or seems to contradict something that has been said previously</span>. Hope this helps.
They both have the sane story background
Answer:
There is less land on the world.
ANSWER(S):
B. asserted
EXPLANATION(S):
A. murmured: too subtle
B. asserted: adequate
C. commented: too monotonous
D. snarled: too aggressive