The correct answer is option 'C', James Hargreaves.

James Hargreaves, an English weaver and carpenter, devised the Spinning Jenny in the late 1760s. The Spinning Jenny was an important invention in the textile industry and played a significant role in the Industrial Revolution.

Below are the details explaining James Hargreaves' role in devising the Spinning Jenny:

1. Background:
- In the 18th century, the demand for cotton textiles was increasing rapidly, but the existing methods of spinning yarn were time-consuming and inefficient.
- Prior to the Spinning Jenny, spinning yarn was done using a spinning wheel, which required significant manual effort and could only produce one thread at a time.

2. Invention of the Spinning Jenny:
- James Hargreaves, who was both a weaver and a carpenter, observed the limitations of the spinning wheel and sought to find a solution.
- In the late 1760s, he developed a machine that could spin multiple threads at once, which he named the Spinning Jenny.
- The Spinning Jenny was a hand-powered machine consisting of a simple frame with multiple spindles and a single wheel.
- By turning the wheel, the operator could simultaneously spin up to eight threads, significantly increasing the productivity of yarn production.

3. Impact and Significance:
- The Spinning Jenny revolutionized the textile industry by increasing the speed and efficiency of yarn production.
- It allowed for the production of multiple threads simultaneously, reducing the labor required and increasing productivity.
- The invention of the Spinning Jenny was a significant step towards mechanization in the textile industry and played a crucial role in the Industrial Revolution.
- The increased production of yarn provided the necessary raw material for the subsequent development of mechanized weaving machines, further transforming the textile industry.

In conclusion, James Hargreaves, an English weaver and carpenter, devised the Spinning Jenny in the late 1760s. This invention revolutionized the textile industry by enabling the simultaneous spinning of multiple threads and significantly increasing productivity. The Spinning Jenny played a crucial role in the Industrial Revolution and paved the way for further mechanization in the textile industry.

James Hargreaves