A is the answer for apex!!
It has lowered the life-expectancy of the working class, and has made the people dependent on the mines for their living.
Answer:
Leader, business women/man
Explanation:
With the invention of the stethoscope, physicians were able to listen to the various sounds made by the heart and lungs. And began to be able to identify if patients had any diseases or ailments.
The Founders included the Tenth Amendment, which gave the states
reserved powers. That is, Constitutional powers not given to the
national government (or prohibited to the states) were reserved for the
states.
Hope this helps!!