The best summary of the excerpt is B) “Huskies are resourceful and able to take care of themselves during the summer when men do not use them to pull dog sleds.” The text introduces that during the summer huskies are not needed; therefore they are left on their own and they find resources to eat.
Option A is incomplete as it does not mention what huskies do during summer.
Option C only describes animals but do not explain in which context.
Option D is a phrase within the text but does summarize its content.
Answer: Physical map
Explanation:
A physical map is a map that is used to show and illustrate the physical features that can be found in a particular area.
The physical map helps the readers in the identification of deserts, rivers, mountains, landforms etc and also shows them the height, shapes etc.
Since we want to find where the Amazon river meets the rain forest, the physical map will be used.
The answer for your question is B: Formal