**Core Concept**
Broca's area is a region in the brain responsible for speech production, language processing, and motor planning. It is a critical component of the left hemisphere's language network and is involved in the articulation of words and sentences.

**Why the Correct Answer is Right**
Broca's area is located in the frontal lobe, specifically in the inferior frontal gyrus (Brodmann area 44 and 45). This region is crucial for the production of speech, and damage to this area can result in Broca's aphasia, characterized by difficulty speaking in grammatically correct sentences and articulating words. The left hemisphere's dominance for language processing is due to the presence of Broca's area and Wernicke's area, which work together to facilitate language comprehension and production.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because Broca's area is not located in the parietal lobe, which is primarily involved in processing sensory information.
**Option B:** This option is incorrect because Broca's area is not located in the temporal lobe, which is primarily involved in processing auditory information and memory.
**Option C:** This option is incorrect because Broca's area is not located in the occipital lobe, which is primarily involved in processing visual information.

**Clinical Pearl / High-Yield Fact**
A key characteristic of Broca's aphasia is the presence of "agrammatic" speech, where individuals struggle to produce grammatically correct sentences. This can manifest as short, fragmented sentences with difficulty articulating words.

**Correct Answer: C. Frontal lobe. Broca's area is located in the frontal lobe.**