It's military became stronger and more ruthless; resulting he <span>encouraged the execution, mostly by guillotine, of more than 17,000 enemies of the Revolution.</span>
The answer to your question is D because cell phones & the Internet are both forms of instant communication.
The countries involved in world war 1 because they would've at least seen some propaganda
The long walls that connected Athene with a nearby seaport were built to :
brings supplies to Athens
This wall also very useful as a chain supply to deliver food and reinforcement in case that Athens has to defend their land from Sea attack