C... Herotodus. These were the wars with the greeks between 500 and 300 BCE.
The correct answer is:
D. Candidates need to pay attention to how their personal appearance might after public opinion
Explanation:
The first four presidential debates on television happened in 1960 during the presidential election between Democratic nominee John F. Kennedy and Republican Richard Nixon, this debates provided voters the opportunity to compare both nominees and while Richard Nixon was well prepared and had great answers but did took care of his image, John F. Kennedy proved the importance of public image, he showed a clean aspect and good looks and gained confidence on American voters.
Answer: c. younger workers pay taxes that cover pensions, retirement, and healthcare for elderly people.
Explanation:
The younger generation are the working age population. Because they have jobs, they can be taxed for the benefit of society. Their taxes go towards many social programs including pensions, retirement benefits and healthcare for the elderly.
If the population is aging, it means that there would be more elderly people. Elderly people no longer work and so cannot be taxed as much to provide the aforementioned benefits so an aging population presents a problem to their welfare.