Step 1: Identification of Pottery Techniques.
- Terracotta: Fired at low temperatures, typically red (Option III).
- Stoneware: High-temperature firing, non-porous (Option IV).
- Slip Casting: Liquid clay poured into molds (Option II).
- Porcelain: Characterized by translucency and fine texture (Option I).
Step 2: Final Matching.
Therefore, the correct pairings are (A) with (III), (B) with (IV), (C) with (II), and (D) with (I).