The correct answer is: "the destruction of the LA Times building in 1910".
The event is known as the Los Angeles Times bombing was a intentional attack planned and perfomed by a member of the union named the International Association of Bridge and Structural Iron Workers. 21 employees were killed and more than a 100 injured. The perpetrators were arrested and sentenced, and their trial became an outstanding event in the American labor movement.
The answer B :they tend to be lower
Do you mean the conflict between 1853 and 1853?
All the parties in this conflict were:
The Ottoman Empire (today's Turkey), which had an alliance with France, United Kingdom and the Kingdom of Sardinia (which was only part of Italy in 1861).
Their opponent was Russia.
The correct answer is A. Radical Republicans.
The Fifteenth Amendment gave people of color the right to vote, so D is definitely incorrect. B is incorrect too because labor union organizers wanted all workers to have the same rights. C is incorrect because by passing this Amendment, it would mean better prospects for women too. This leaves us with A, given that these Republicans were the ones who owned slaves in the first place.