John F. Kennedy believe that no matter others will do to them they will keep going no matter if "well or ill, that we shall pay any price, bear any burden" they will keep moving forward. If Americans United they will make a difference and be stronger but if they are separated they can not improve as what they wished for. He believe on "defending freedom" That everyone can make a change for their country.
Hello there, and welcome! :)
Garret Morgan actually invent two things to be honest! (which are: gas mask and traffic light)
But from your choices on here, he invented the The Traffic Light (option B.)
Good luck on your assignment and enjoy your day!
~MeIsKairlyn:)