You just said the answer is D...I'm confused of why you still need an answer :)
Answer;
C. A good driving attitude has little to do with most teen crashes.
Explanation;
-Driving skills are very important in preventing accidents, but, if the 'safety' attitude isn't there (i.e. talking on a cell phone or texting or fooling around with friends or showing off, etc.), every single driving skill 'goes out the window' and the teen becomes the driver of a lethal weapon with his finger squeezing the trigger.
Answer: A. Paris is an old city, but some is even more ancient.
Explanation:
A is a compound sentence because the there are two complete sentences in the sentence. “Paris is an old city” is a complete sentence. “Some is even more ancient” is another full sentence. If there are two or more complete sentence separated by a conjunction, then It is a compound sentence. B is not a compound sentence, because there is only one complete sentence.
Well to understand productivity you must understand how humans started working for the benefit of themselves and community.
A long time ago there ware 4 simple roles a farmer, hunter or gatherer and solider all of which ware needed for basic survival. Then there was a revolution and these basic jobs became more and more unpopular and new jobs ware appearing through new discoveries. Now to make a simple meal we don't need to be a farmer and know hunter and gatherer we just go to store buy it and cook it. What is productivity? Productivity is a number of products made by a single person or bigger communities like country in certain amount of time. What that basically means is that we spend less time to produce. You might say this degrades the quality of products but it certainly increases each individual efficiency.
To reduce risk, D is your answer.