Here are the answers to your questions:
Question 1
A) Which punctuation mark is a semicolon?
Answer: ;
Question 2
A) What is an independent clause?
Answer: a group of words that includes a subject and a verb and forms a complete thought
Question 3
A) Which punctuation mark is a colon?
Answer: :
Question 4
A) Which choice accurately uses the colon to introduce a list of favorite fruits?
Answer: Here are my favorite fruits: apples, bananas, and mangos.
Question 5
A) Where should the colon be placed to provide clarification for a thought?
Answer: Taking a break is usually a good idea: you can clear your head and things feel easier when you go back to work.
Let me know if you need any more help!