Answer:
It hinders how well the students can understand the information their being taught because of different variable of their environment, they might need better explanations or they can have poor internet, etc so they will start to pay attention less as they also have more distraction's and recreational activities near them.
The life of (y/n), because it’s a personal timeline assuming about yourself? so it would basically be about your life
Corrected paragraph:
After World War II, the Soviet Union and the United States both proposed Missions to Mars, but neither sent a manned Spacecraft there.
Hope this Helps!
I’ve never read this story but my gut is going with A
Philosophers, theologists, psychologists and economists have long sought to define happiness and since the 1990’s a whole branch of psychology has been dedicated to pinning it down and propagating it, more than simply positive mood. Happiness is a state of well-being that encompasses living a good life. For example, life with a sense of meaning and deep satisfaction.