The map below shows that. a. Australia is part of Asia
b. Asia is the largest continent
c. Africa is the smallest continent
d. North and South America are considered as one continent

b Asia is by far the largest continent

Asia is the largest continent

Explanation:

it shows that by covering approximately 30 percent of the Earth's land area. It is also the world's most populous continent, with roughly 60 percent of the total population.

it would be d because the however is more proper and the comma is placed in the right spot

i believe it is the first choice (1.)

because the major theme is(“both the wild and civilization have rules.”)

and also as u said,( based on what buck learns within the call of the wild, "both the wild and civilization have rules".this is true of humans within society as well.