Identify the adjective from the given noun-
Metacognition
A) Metacognit
B) Metacognitive
C) Metacogniten
D) Metacogniable

Hint:A noun refers to a word that is used to indicate the name of a person, place, thing, or an animal. ‘Metacognition’ is a noun that refers to the quality of becoming aware of one’s own thoughts and thinking skills.

Complete answer:
An adjective refers to a word that is used to describe or modify a noun or a pronoun. Example- A tall boy was walking on the street. Here, ‘tall’ is an adjective that is used to modify the noun, ‘boy’.
We form adjectives from their respective noun forms or verb forms by adding suitable suffixes, such as ‘able, ous, y, etc’.
Example- ‘Natural’ is an adjective that is formed by adding the suffix ‘al’ to the noun ‘nature’.
Now, let’s examine the given options to identify the adjective of the noun ‘metacognition’-
A) ‘Metacognit’ is an inaccurate option as there is no such existing word in the English language. Hence, it is an incorrect option.
Option b- ‘Metacognitive’ is the adjective form of the noun ‘metacognition’ which is formed by adding the suffix ‘ive’ to the given noun. Hence, it is the correct option.
Option c- ‘Metacogniten’ is not an existing word in the English language. Hence, it is an incorrect option.
Option d- ‘Metacogniable’ is not an existing word in the English language. Hence, it is an incorrect option.
So, the correct answer is “Option b”.

Note:
Metacognitive is an adjective that describes a person’s awareness of his cognitive skills. Keep in mind, we cannot change the meaning of the word while forming its adjective form from a specific noun.