it doesn't require citations it's common knowledge
B, you need to give the reader basically a reason to read it so you give the hook and the topic of the sentence so basically what the story is going to be about.
Answer:
1. Canada
Explanation:
2. Giraffe
Here is your answer hope it helps.
The mistakes with the sentence is that there should be a semi colon after the word week and there should be the word should after “I think I”
here is the sentence correctly
I’m exhausted after so much work this week; I think I should stay home and go to bed early.