Final answer:
The term describing a hidden structural defect from faulty construction is 'Latent defect'. It only becomes evident after some time, unlike patent defects which are immediately visible.
Step-by-step explanation:
The student is asking about the term used to describe a hidden structural defect resulting from faulty construction. The correct answer from the options provided is b) Latent defect. This refers to a problem that is not visible or discoverable upon ordinary inspection and may surface later, after the completion of the construction. In contrast, a patent defect is one that is obvious and can be detected easily upon inspection. A design defect refers to a flaw in the planned design of a structure, and a construction defect is a broad term that can encompass both patent and latent defects.