The correct answer is c) hyaline cartilage.
Connective tissue proper is primarily classified into two main categories: loose connective tissue and dense connective tissue. Loose connective tissue includes types like areolar tissue, adipose tissue (which stores fat), and reticular tissue. Dense connective tissue includes types like tendons and ligaments. On the other hand, hyaline cartilage is not categorized under connective tissue proper; rather, it falls under specialized connective tissues, which also include fibrous cartilage and elastic cartilage. Therefore, while adipose tissue, loose connective tissue, and dense connective tissue are all types of connective tissue proper, hyaline cartilage is distinctly separate.