Character and plot.
Character would help you understand who was doing something.
Plot would help you understand what is going on.
Hope I helped :)
Grim melancholy would be the answer
Explanation:
how their emotions are and their physical capabilities
Not if you do it at the last minute
Answer:
A. Eventually he gave up, saying, "The problem is too complicated, scientifically insoluble."
B. But Akerblad's success in identifying so many demotic characters now led him to make a serious mistake.
C. It was like the inspired hunches that have led so many of the great advances in science and technology over the ages.
D. Because of this mistaken belief, Young put roadblocks in his own path.