Work roles in the sixteenth century were redefined because : a. the use of tobacco made the workplace unhealthy. b. work began to lose its association with the family and became more linked to the public political arena, leading to fewer work opportunities and less economic influence for women. c. the growth of trade and exploration led to a shortage of men, permitting greater opportunities for women. d. large numbers of African slaves were imported into Europe, increasing unemployment among Europeans.

I think the answer is B, I don't actually know so if you click b and get it wrong I am so, so sorry.

Explanation:

i dont know cuh

health care plans in the united states having high costs because they are focusing on providing quality programs for different groups of individuals. the quality of the service is based on money flow received from the members. without this investment, couldn't be possible a constant scientific searching to prevent death and illness caused because of low levels of health investigation. currently, the complaints are not about the highest cost, but about the coverage and benefits to access the necessary health services required by the members.  

besides, if a global health system is established the quality levels will fall down because of the standardized of the health. the access to care will increase but the quality will be low because it depends on the money invested.