Step 1: Analyze the conversation clues given by X and Y.
- X says:
- "I am a part of a window and can be appreciated from outside."
→ This suggests that X is a transparent material, most likely glass or an acrylic sheet.
- "While I ensure light inside the room, I am not affected by the weather."
→ Glass allows light to pass through but is not structurally affected by weather.
- Y says:
- "I might be invisible, but I carry the building load."
→ This suggests Y is a structural material that provides strength but is not always visible.
- "I am not exposed to the weather, and people take advantage of my strength."
→ Reinforcement bars (steel bars) are embedded inside concrete and provide strength, but they are not visible externally.
Step 2: Compare with the answer choices:
- Option A: X is Glass, Y is Sand (Sand does not carry the building load)
- Option B: X is Glass, Y is Reinforcement bar (Correct, as Glass is visible and Reinforcement bars provide strength)
- Option C: X is Acrylic sheet, Y is Sand (Acrylic sheet fits but sand does not provide structural strength)
- Option D: X is Stone, Y is Reinforcement bar (Stone is not typically part of a window)
Thus, the correct answer is option B.