Which of these sentences uses correct capitalization?
did you know that a swedish engineer designed the monitor, an ironclad ship in the civil war?
did you know that a swedish engineer designed the monitor, an ironclad ship in the civil war?
did you know that a swedish engineer designed the monitor, an ironclad ship in the civil war?
did you know that a swedish engineer designed the monitor, an ironclad ship in the civil war?

The correct capitalization is used in the second sentence: Did you know that a Swedish engineer designed the Monitor, an ironclad ship in the Civil War.

Swedish, Monitor and Civil War are all proper nouns and therefore need to be capitalized.

Engineer here is listed as a profession and therefore does not need to be capitalized.

answer: #1 is (a) however

explanation:

to me i think class room sitting education is better. i do online school and i have not learned a think haha. when i sit in the classroom i just sit there and kind of pay attention but still i get so far ahead in the class when im doing online i have nothing else better to do but play video games and i sit in school and learn and have friends and just actually learn. when i'm doing online i sit here listing to music and get on and and look up the answers i guess that is my fault for being a cheater. but to be honest i think sitting in the classroom is better.