Answer:
all of them carry important values
Explanation:
trade is applicable for all scenarios. we all have problem at least in our life and we need others support so above mentioned scenarios are not redundancy trading.
I think that Hitler saw in Austria the chance to increase the number of loyal, German soldiers - Austrians speak German and are culturally similar so it was easy to include them into the German army and so quickly acquire a great number of loyal soldiers who spoke the language and shared the culture with the Germans.
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The Industrial Revolution saw a shift from man-made goods to machine-made products.
Hope that helps!
:D®
The correct answer is D. If you take action, and you do not understand what you are doing, you can cause more harm than good.