Which invention was in use before the Second Industrial Revolution?

Question

anonymous · Answer

reaper
 telephone
 light bulb
 phonograph

anonymous · Answer

i think c

anonymous · Answer

I believe it is the reaper since it was invented in 1831 and the second industrial revolution lasted from the 1840s to the 1860s.

paki · Answer

The second industrial revolution is also the Technological Revolution... The Reaper was widely used to cut down and harvest, so the answer would be A... the revolution started at 1870s... 

the light bulb was invented at 1879...

telephone at 1876

zipper at 1890

and the reaper was invented in 1831 so it was already a popular harvesting tool by the time of the revolution...   @nerlineg

anonymous · Answer

so.. A

paki · Answer

yeah :)