The largest producer and exporter of long staple cotton in the world is:

Detailed Solution:

The correct answer is “U.S.A.”.

India is the top producer of cotton,this accounts for about 23% of the world's cotton production. The United States is the leading exporter of cotton, India is the second-largest exporter.

Long-staple cotton accounts for almost half of total cotton output in India. Egypt is known for producing the highest quality long-staple cotton.