you are investigating into something and researching it
Answer:
A) A title that includes the pronoun I, Me, or My.
Explanation:
By process of elimination, the first sign is the answer.
I would say C. It seems like he is saying that the two have different strategies.
Answer: The time period was from a time ago. At least before they had whiteboards and still when they had to use wooden ovens to keep warm instead of a heater. The chalkboards aren't used anymore and not many teachers refer to children as primary children.
Explanation: