Answer:
Secondary because Common Sense is the primary source.
Answer:
I'd probably go for either A or C.
Explanation:
There was massive unemployment during the Industrial Period, and D would be completely incorrect. The mass production of factories and crammed living space resulted in a great amount of pollution - this is how London's 'The Great Smog' came about.
Answer:
One of the telegraphs problems is that telegraphs take time to decipher. They also always have to put in the word STOP at the end of a sentence. Making it confusing for those who don't understand. Another being that, telegraphs use morse code. Many people do not know morse code, which is why telegraph offices existed in the first place.
