Question

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

Explanation:

詹姆斯·瓦特（James Watt）通过改进蒸汽机，使其成为可靠的动力源，对工业革命起到了重要作用。

Answer:

making steam engines a reliable power source.