Identify the correct invention of the industrial revolution with its inventor (more than one)

I believe the correct answers are:

A. Samuel Morse and the telegraph

B. Cyrus McCormick and improved reapers

E. Robert Fulton and the steamboat

Please let me know if one or all is incorrect. I tried! ^-^

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.  

b hope this