<span>World War I engineers developed radar, and World War II participants used it to break the German code</span>
Answer:
The answer is demonstrating to men the way they should treat their wives.
Explanation:
Fanny Fern was was demonstrating to men how they should treat their wives.
Fanny fern said if men treat their wives the way they should; treating them properly with love and care, women will definitely submit to them.
For example, if husband is showing affection, caring and generosity to his wife such wife will be submissive.
The answer is C, they moved 1.8 million tons of supplies over the trail from 1965 till 1975
hope this helps!
EDIT: typo