Submarines is the only one that didn't cause high casualties .
Answer:
The royal family were assassinated. their fate was necessary because the Romanov's were a symbol of totalitarianism during a period were the soviet union was suffering due to the royal family's decision to participate in the world war resulting is massive casualties and the lack of food for the Russian population whilst the royal family lived frivolously i.e the czar "Nicholas" bought his wife the Faberge egg which is worth 33 million dollars as of today. The soviets needed a new form of government who'm would think for the betterment of the people of Russia, by killing the royal family communism would take place because it promised that everything will be shared to everyone equally. the soviets/Bolsheviks acted the way they did i.e killing the family because the family were a symbol of autocracy(totalitarianism) because they had absolute power over Russia.
Answer:
we don't just know what your teacher has as choices
Explanation:
