Step 1: Understanding the Concept:
Fabric preparation and grain alignment techniques essential prior to garment cutting.
Step 2: Detailed Explanation:
Standard garment construction procedure for preparing fabric before cutting:
1. Step 1 (B. Straightening Grain): Straightening the fabric ends by pulling a crosswise thread (thread-pull method) or tearing along grain.
2. Step 2 (A. Blocking Squaring): Pulling the fabric diagonally (bias stretching) to square the warp and weft yarns into true $90^\circ$ perpendicular alignment.
3. Step 3 (D. Pressing): Ironing/pressing the fabric to remove all wrinkles and creases.
4. Step 4 (C. Marking): Laying pattern pieces and transferring pattern markings with tailor's chalk prior to shears cutting.
Sequence: B $\rightarrow$ A $\rightarrow$ D $\rightarrow$ C.
Step 3: Final Answer:
Hence, the correct sequence is B, A, D, C, corresponding to option (B).