·1832 cyrus mccormick develops the mechanical reaper
· 1837 john deere patents the steel plow
· 1892 john froelich builds the first gasoline-powered tractor
· 1895 refrigertion techniques developed in the u. s.
which sector of the american economy would have been impacted most by the developments listed in this timeline?
a) the energy sector
b) the industrial sector
c) the agricultural sector
d) the communications sector

C) the agricultural sector.

Explanation:

The agricultural sector is the one that deals with the production of food in farms and other rural areas. This is the sector of the American economy that would have been impacted most by the developments listed in the timeline. The mechanical reaper, the steel plow and the gasoline-powered tractor all improved the way the land was worked, making the work easier and more efficient. On the other hand, refrigeration techniques ensured that food lasted longer.

i believe the correct answer is b.