D - primary sources are old and secondary sources are based off primarily sources
The reason why the isolationist senators object to the League of Nations is letter D. Member nations had to defend other members if they were attacked. I hope you are satisfied with my answer and if you have more clarifications and questions, feel free to ask for more
Qualitative studies on food beliefs show that lower-class mothers consider health less frequently in their choice of food, while they take the preferences of family members and expenses more often into account than their middle-class counterparts.
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