Step 1: Understanding the Question:
Area rugs are mobile floor coverings used to protect floors, define zones, or add aesthetics. They differ from permanent flooring materials.
Step 2: Detailed Explanation:
• Accent Rugs (A): Small rugs used to highlight a specific area or add a pop of color.
• Scatter Rugs (D): Small rugs (usually $2 \times 3$ feet) that can be placed randomly to catch dirt or add warmth in spots.
• Art Rugs (C): Decorative rugs that feature artistic designs, often used as focal points.
• Exclusion: Carpet Tiles (B) and Rubber Tiles (E) are modular flooring materials. They are installed to cover the whole floor like a puzzle and are not considered finished \enquote{Area Rugs}.
Step 3: Final Answer:
The rug types are A, C, and D.
Therefore, the correct answer is B.