The last one.
Create a bibliography so you can make sure you've cited sources correctly.
One you are, Or one year sounds right
<span>The answer is:</span>
C. Sentence 1
<span>The
sentence “Earth's crust is made up of relatively rigid plates that
ride atop Earth's hot, semiliquid mantle.” Is the topic sentence because it
connects all the other sentences to its main idea. They entire paragraph is
related and can be a subtopic of this sentence, which is the purpose of a topic
sentence.</span>
Answer:
opportunity costs are the alternative choice in which you could make when making a financial decision while a trade-off is something that you could switch out in order to make a different decision
