A parallel sentence mentions the same grammatical expression twice. I would go with "D". 'Passed' and 'Demonstrated' are both past tense words that express the same past tense grammatical idea.
If you have more questions, feel free to ask me.
“Did you know that harnesses are far more secure than dog collars? Dog collars are in fact dangerous in some cases, causing harm to dogs necks, and dogs can slip out!”
As the writer forms an idea of what he wants to write, he should begin to narrow his vision and focus on a specific topic and tackle what that topic entails.
No, I would not take it because if you lived for the rest of the world then it would get boring and would seem like the same day over and over again. I would also not be able to see my family members that I grew up with and spent my life knowing and loving. Another reason why I wouldn't consider immportality for a choice to me is because maybe in the future things get worse and worse to live and because after all there is a lot of polution in the earth, who knows how much there will be in 100 years? I could not handle the anoyyance of just living for so many years wondering what will happen next. Or if things will change, because the same thing over and pver again is boring and not worth the power of imortality.
