**Core Concept**
Tungsten is a chemical element with the atomic number denoting the number of protons present in the nucleus of an atom, which defines the element's identity and position in the periodic table.

**Why the Correct Answer is Right**
The atomic number of an element is a unique identifier and is used to distinguish one element from another. Tungsten, with its symbol W, has a specific number of protons in its atomic nucleus, which is 74. This defines its position in the periodic table and distinguishes it from other elements. The atomic number is a fundamental property of an element and is used in various scientific and medical applications.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not match the known atomic number of Tungsten.
**Option B:** This option is incorrect because it does not correspond to the atomic number of Tungsten.
**Option D:** This option is incorrect because it is not the correct atomic number of Tungsten.

**Clinical Pearl / High-Yield Fact**
For students taking exams like NEET PG or USMLE, it's essential to remember that the atomic number of an element is a unique identifier and can be used to distinguish one element from another. In medical applications, knowledge of atomic numbers can be useful in understanding the properties and behavior of elements in the human body.

**Correct Answer:** C. 74