The correct answer is A. Phulkari.
Phulkari is a type of embroidery work that is done on a plain white cloth using a variety of stitches. The designs are usually floral and geometric, and they are often done in bright colors. Phulkari is a traditional art form that has been practiced in the Punjab region of India and Pakistan for centuries. It is often used to decorate clothing, household items, and religious objects.
Sozni is another type of embroidery work that is done in Jammu and Kashmir. It is similar to phulkari in that it uses a variety of stitches to create intricate designs. However, sozni is typically done on a black or dark blue cloth, and the designs are often more abstract than those found in phulkari.
Chain stitch and crewel are both types of embroidery that are done with a needle and thread. Chain stitch is a basic stitch that is often used to create outlines or borders. Crewel is a more complex stitch that is used to create intricate designs. Both chain stitch and crewel can be used to create beautiful embroidery work, but they are not as delicate or beautiful as phulkari.