Efficient means someone who is working in a well-organized way and plans things well. So think of what a character would do being "well-organized" "well-planned" ...etc.
B) there is another behind it just as important and just as nervously anxious to do something effective
AND
E) this particular wave was the final outburst of the ocean,
I wished my friend good morning, and he said let us go for a walk. Hopefully this helps.
Answer: E
Explanation: No one is directly addressed and therefore no blame is given
