Step 1: Understanding the Concept:
Lucknow Chikankari is characterized by various types of stitches categorized into flat, raised (embossed), and open trellis work.
Step 2: Detailed Explanation:
Let us evaluate the different Chikankari stitches:
1. Taipchi (B): A simple, flat running stitch used for outlining designs.
2. Bukhia (C): A flat shadow-stitch worked on the wrong side of the sheer fabric to create a soft, opaque effect on the right side.
3. Herringbone (D): A flat stitch often used in shadow work.
4. Murri (A): A tiny, raised knot stitch that produces a distinct embossed effect. It resembles the shape of a grain of rice and is used to create delicate floral and foliage centers.
Thus, the stitch producing the embossed effect is Murri.
Step 3: Final Answer
The correct option is (A).