In the early 20th century the US was the largest agricultural producer
Scarcity effects people's life's through different ways they are
scarcity of food and scarcity of water could cause to death
I believe the answer is :C. tolerance
In this context, tolerance refers to your physical ability to handle the effect of foreign substance that come inside.
As you consume more of the substance, your body would adjust to increase its tolerance for that substance, which make you need more amount in order to feel the same effect.
