What was a major reason for the surge in production efficiency during the Industrial Revolution?

Select one:

a.Workers in this era began to take more pride and increased ownership in their ability to produce quality goods and services.

b.Technological advances gave rise to the mass production of goods in huge factories.

c.There was a switch from an economy that produced mostly goods to an economy that produced mainly services.

d.Major new sources of natural resources such as coal, iron, and petroleum were discovered.