I think its d makes the most sense and slander is when they provide untrue statements that could hurt your career
Scientific discoveries allow several problems that threatened and even hindered our lives to be solved. This can be seen by the development of disease treatment, better forms of mobility, better forms of communication, greater access to entertainment, among other technologies that we can say that make our lives easy, increase our quality of life and allow maintenance of our life is more efficient.
However, scientific advancement promotes the strong exploitation of natural resources, which causes degradation of those resources that are essential for our existence. With degeneration increasingly efficient, we do not know what our lives will be like in the future, but we know it will be insecure because we cannot fight against the force of environmental imbalance.
The last one. The only scenario where you wouldn't put a comma in the first quote is if it's a completed remark that uses particular punctuation such as a quotation or exclamation mark, but never a period. Hope this helped.
The Americans stopped attacking the British outside of Philadelphia after they retreated for the first time because of the weather.
It was winter, and whereas the British were warm and cozy, whereas those Americans who still wanted to fight were frozen and deprived of food and resources. Thus they decided to wait until the weather cleared and then attack their enemies.
