I think the answer is C because it’s the only one that attests to what Mr.Kops has done
Answer : The sentences from the excerpt that seems to foreshadow Dexter’s future obsession with “possessing” Judy Jones is -
"He wanted not association with glittering things and glittering people—he wanted the glittering things themselves. Often he reached out for the best without knowing why he wanted it—and sometimes he ran up against the mysterious denials and prohibitions in which life indulges."
Where it is clearly seen that he wants all the best things that was available without the answers of why he wanted them. He always wanted best things or him.
It is because there are certain weight limits that should be followed. When the EDS would exceed the specified limit, the aircraft will crash before it reaches its destination. This was taken from the science fiction called Cold Equation. Barton is a one of the EDS pilot. During his flight, he discovered there was a stowaway girl named Marilyn, hiding in the vessels area which eventually led to their demise.