<span>A. by testing the author’s logic and reasoning </span>
I think it is more often, if I'm reading the question right
A collection of items of the same type stored in a hidden or inaccessible place. It would be appropriate to use for something like “I have my own cache.” Like a collection stored in one place.
C uses correct parallel structure.
Answer:
The answer is 'D' because it contain the word 'but'
A coordinating conjunction is a sentence that uses words such as 'but' and 'and'
