Answer:
B
Explanation:
The Prompt mentions the history of aviation and the people involved and answer B states that explicitly.
Answered by Mimiwhatsup: The gloomy mood reflects the man's positive attitude.
Why by Mimiwhatsup: Jack London creates a lonely atmosphere
B. Cultural practiced of language and religion changed.
Assuming this is in regards to the Aryans and the Indus Valley civilizations. Aryans introduced early Hindu ideas and writings, as well as developed the earliest forms of Sanskrit.