Read this excerpt from page 2 of Passage 2. "[M]y business now is, not to appeal to that
portion that is opposed to me nor to those that
are already on my side, but to bring over the
middle section."
How do these words help to refine the author's
account of his speech?

"the sandy walls seemed to collapse in on themselves"

and

"the bloodshot waters seemed to have no bottom"

ok if it wasn't the hans one it was probably c or he thought the mountain was collapsing on them.

the last option d is the answer.the reasons are clear.he wants to defend flying drones as an activity which does not invade people´s lives.in turn , after making the claim collin justifies the use of drones as a sport and mentions what it requires for doing so.collins also says that it should be advisable to have more organization for the ones who do this activity but never gives any evidence to support the claim that drones do not invade privacy.when collins tells about complaints against the time and place drones are used , he could be speaking about people being disturbed about the noise drones make or about using some public space meant for other activities and not exactly privacy.

what is the source? i can't answer without seeing it.