Question

james watt played an important role in the industrial revolution by
developing a process to make textiles efficiently.
making steam engines a reliable power source.
inventing the steamboat to carry goods and people.
encouraging the growth of cottage industries.

Explanation:

James Watt's key contribution to the Industrial Revolution was improving the Newcomen steam engine, making it far more efficient and reliable for widespread industrial use. The other options are incorrect: textile processes were linked to figures like Richard Arkwright, the steamboat was invented by Robert Fulton, and cottage industries preceded Watt's work and declined with factory industrialization.

Answer:

B. making steam engines a reliable power source.