Answer:
The correct answer to the question "Porqué hay casas sin terminar en Puno?" is:a. because they ran out of construction materials.The reason why there are unfinished houses in Puno is typically due to the lack of construction materials. This can occur for various reasons, such as limited availability or affordability of materials, logistical challenges in transporting materials to remote areas like Puno, or delays in the supply chain. When the construction materials run out, the construction process is put on hold, resulting in unfinished houses.While the other options (b. because people don't have to pay taxes until their house is finished and c. because there are no people living in them, only llamas) may be possible in other contexts, they are not the primary reasons for houses being unfinished in Puno as indicated in the question. It's important to focus on the specific information provided in the question to provide an accurate answer.