I would say this is a complex sentence. Because it has one independent clause(their more aggressive style did not pay of.) and two dependent clauses.
Answer:
foolishly believed thoughtfully guessed
Explanation:
Answer:
primary source because it was created by someone who was directly involved in the events
Explanation
Primary.S advantage- you would be able to know that you are getting the original information . disadvantage- very time consuming
Secondary.S advantage- provides many experts insights on the whatever you are researching about. disadvantage- may take longer to find specific information
