Answered

In addition to weaponry, communication, and medicine, which war time industries had significant technological breakthroughs?

Atrucking, mining
Bpassenger cars, farming
Cairplanes, farming
Dshipping, mining
Epassenger cars, mining

Verified Answer :

In addition to weaponry, communication, and medicine, the war time industries that had significant technological breakthroughs were "c. airplanes, farming" since both of these were crucial to the war effort. 

I believe the answer is: c. airplanes, farming

During the wartime, airplanes industries managed to develop the technology that allow the planes to move at higher elevation and speed, which would give a competitive advantage during the war.

The development in farming revolve around their preservation technique, which made is easier for the government to prepare the meal supply for their soldiers.

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