**Core Concept**
Fine needle aspiration cytology (FNAC) is a diagnostic procedure that involves using a thin needle to collect a sample of cells from a lump or mass. This method is useful for evaluating the cytological characteristics of cells, but it has limitations in certain conditions where the diagnosis requires architectural or tissue-level information.

**Why the Correct Answer is Right**
The correct answer is related to the fact that FNAC is a cytological technique that cannot provide information about the tissue architecture or the presence of specific tissue structures. This is particularly relevant for conditions like bone or cartilage tumors, where the diagnosis requires a tissue biopsy to evaluate the histological pattern and specific tissue structures.

**Why Each Wrong Option is Incorrect**
**Option A:** Not enough information to determine the correct answer. However, if we consider the options that are commonly diagnosed using FNAC, this might not be the correct answer. For example, thyroid nodules, breast lesions, and lymph node abnormalities are often diagnosed using FNAC.
**Option B:** FNAC can be sufficient to diagnose many types of soft tissue tumors, such as lipomas, hemangiomas, or neurofibromas, which have distinct cytological features.
**Option C:** FNAC can be used to diagnose some types of bone lesions, such as osteoid osteoma or chondroblastoma, which have characteristic cytological features.

**Clinical Pearl / High-Yield Fact**
When evaluating a patient with a mass or lump, it's essential to consider the limitations of FNAC and determine whether a tissue biopsy is necessary to make an accurate diagnosis.

**Correct Answer:** D.