C. jews, slaves, and gypsies from across europe were sent to concentration camps
Answer:
plantation agriculture
Explanation:
Plantation agriculture is generally referred to as a Large farm that is mostly based on a particular crop. Often Cash crops are usually cultivated and later harvested to sell to make a profit. It is also the concept of growing vast amounts of cash crops to be sold at the market for personal profit.
Hence, in this case, the correct answer is "PLANTATION AGRICULTURE"
The production of steel was entirely crucial to the development of railroads, since the rail lines themselves were made of steel, without which the trains would not be able to move.
