Introduction:
The Turks made significant contributions to the cotton textile industry in India. They introduced several new techniques that revolutionized the production and quality of cotton textiles. Among these techniques, the following were introduced by the Turks in India:

I. Supinning Wheel:
The supinning wheel was one of the new techniques introduced by the Turks in the cotton textile industry in India. This spinning wheel was an improvement over the traditional spinning wheel as it allowed for faster and more efficient spinning of cotton yarn. The supinning wheel had a larger spindle and could spin multiple threads at once, increasing the productivity of the spinning process.

IV. Cotton-Carder Bow:
The cotton-carder bow was another technique introduced by the Turks in India. It was a tool used for carding cotton fibers to align them in a parallel fashion before spinning. The cotton-carder bow had a set of wire teeth that combed through the cotton fibers, removing impurities and aligning the fibers for spinning. This technique improved the quality of the cotton yarn by ensuring that the fibers were evenly distributed and free from impurities.

V. Weaver, Treadles:
The weaver's treadles were also introduced by the Turks in India. Treadles were foot-operated pedals that controlled the movement of the loom during weaving. By using treadles, weavers could operate the loom more efficiently and produce textiles at a faster rate. This innovation increased the productivity of the weaving process and allowed for the production of larger quantities of cotton textiles.

Explanation:
The correct answer is option B (II, IV, and V). The Turks introduced the supinning wheel, cotton-carder bow, and weaver's treadles in the cotton textile industry in India. These techniques revolutionized the production of cotton textiles by improving the spinning and weaving processes. The supinning wheel allowed for faster and more efficient spinning of cotton yarn, while the cotton-carder bow improved the quality of the yarn by aligning the fibers. The weaver's treadles increased the productivity of the weaving process by enabling weavers to operate the loom more efficiently.