The answer to this would be B. A history textbook.
A textbook is written by many people not just one wiht the person not around in that time peiod.
"a personal recod" is a autobiography and autiobiographys are written by the person who lived it so its a primary source. Therefor the answer is not a or c. Its not D because organztion records are writin recerds that makes them primary.
Have a nice day
Most iceberg warnings were ignored that day because the wireless operator was too busy sending out passenger messages via the Marconi wireless room. Plus the iceberg itself was very hard to see(black Ice)
