A. Because the source would have a wide spectrum of information and would lead you to other sources for more specific information.
It's D your choice as commas, split an explanation while the conjunction 'but' links two sentences. No need to separate them by using a semicolon.
Run faster maybe or jump higher to win
“His new concurrent sentence means three more years behind bars.”
Explanation: The definition of concurrent is things that are happening at the same time. An example of concurrent are two TV shows that are both on at 9:00. Happening, existing, or done at the same time as something else.
