Final answer:
The subject that explores language acquisition, linguistics, and communication is primarily found within the field of Psychological studies, particularly under cognitive psychology. This area encompasses the understanding of natural language development, the innate capacities for language learning, and the application of linguistics to solve real-world problems.
Step-by-step explanation:
The subject of study that primarily explores language acquisition, linguistics, and communication is Psychological (choice B). The discipline involving this study is generally psychology, with a focus on cognitive psychology, which delves into how humans think, learn, and process information. Language development is a central topic in this field, as it is a key aspect of cognitive development. Individuals, especially children, naturally acquire language in a predictable sequence consistent across cultures, supporting the presence of a biological predisposition for language learning, as proposed by researchers like Noam Chomsky.
Chomsky introduced the concept of a language acquisition device (LAD), which is believed to be an innate mechanism facilitating language learning. The debate between the roles of nature (biology) and nurture (environment and experience) in language development is a significant part of cognitive psychological studies. Applied linguistics, a subfield, also addresses practical problems related to language, such as those faced by immigrants. Additionally, cognitive psychology includes research on grammar and lexicon, which are crucial for communicating abstract and concrete concepts, thereby highlighting the complexity and richness of language.