The answer is A. European leaders were concerned about instilling good hygiene practices.
Personally, i don't think he is.
John Brown Believed that the only way to overthrow the institution of slavery is by doing an armed revolt. We have to aware that in his Era, slavery is very common. Is like owning a dog in this era. He probably tried to convince the slave owners to realize the value of human's dignity no matter what the race is but nobody agrees with his point of view.
Cover crop roots hold the soil in place, protecting soil from wind erosion. Cover crops can also protect soil from the impact of heavy rainfall and runoff. Reduced erosion protects and improves water quality by keeping ag chemicals in the ground and out of drainage water.
Is this a random Nazi official? Going to go on a limb and say Argentina because apparently a few escaped to their.