**Core Concept**
The cephalic index is a measure used to classify the shape of the head based on its length and width. It is calculated by dividing the maximum width of the head by its maximum length and multiplying by 100. This index helps in identifying different ethnic groups and populations.

**Why the Correct Answer is Right**
The correct answer is associated with a brachycephalic head shape, which is characterized by a relatively short length and wide width. This is seen in populations of East Asian and Native American descent. The higher cephalic index value indicates a more pronounced brachycephalic skull shape.

**Why Each Wrong Option is Incorrect**
**Option A:**
This option is incorrect because it does not correspond to any known classification of the cephalic index. The cephalic index is usually categorized as dolichocephalic (long and narrow), mesocephalic (medium length and width), brachycephalic (short and wide), or platycephalic (flat and wide).

**Option B:**
This option is incorrect because it refers to a dolichocephalic skull shape, which is characterized by a longer length and narrower width. This is seen in populations of European and African descent.

**Option C:**
This option is incorrect because it does not accurately represent a known classification of the cephalic index. The given value does not fall within any of the common categories.

**Clinical Pearl / High-Yield Fact**
The cephalic index can provide valuable information about an individual's ancestry and can be useful in forensic anthropology and medical anthropology.

**Correct Answer: C.**