Which sentence is punctuated correctly?

charles dickens was a british author who wrote, oliver twist, david copperfield, and great expectations.
charles dickens was a british author who wrote oliver twist, david copperfield, and great expectations.
charles dickens was a british author who wrote, oliver twist, david copperfield and great expectations.
charles dickens was a british author who wrote oliver twist david copperfield and great expectations.

We must understand the connections between the climate crisis and the afflictions of poverty, hunger, hiv-aids, and other pandemics. as these problems are linked, so too must be their solutions. we must begin by making the common rescue of the global environment the central organizing principle of the world community. which statement best describes gore's use of evidence to support his argument? a. gore makes connections between events to support his argument that solutions to the climate crisis will also solve other problems. b. gore provides dramatic details to support his argument that solutions to problems of this magnitude are often rare. c. gore compares crises in the world to support his argument that the problem of climate change must take a backseat to other problems. d. gore describes positive outcomes to support his argument that people should remain optimistic about finding solutions to climate change.