Respuesta :
The
correct answer is:
a. Both machines saved the operators time.
The reaper that McCormick invented enabled a more efficient harvest of plants and it also sped up the harvest process. The thresher that Howe invented also enabled a faster processing for the plants that were already harvested.
a. Both machines saved the operators time.
The reaper that McCormick invented enabled a more efficient harvest of plants and it also sped up the harvest process. The thresher that Howe invented also enabled a faster processing for the plants that were already harvested.