$A$ ligament is ............... .

Provide definitions/explanations for the following terms:
$(i)$ Perichondrium
$(ii)$ Serum

Elastic cartilage is found in

The matrix or ground substance in connective tissues is made up of $......$

Given below are two statements:
Statement $I$: Ligaments are dense irregular tissue.
Statement $II$: Cartilage is dense regular tissue.
In the light of the above statements,choose the correct answer from the options given below:

Find the incorrectly matched pair.