Rahim is the third child of his family. Here 'third' is ______. ?

The correct answer to the question is D: Ordinal numeral. An ordinal numeral is a word or number that indicates position or order within a sequence, rather than quantity. In the given statement, "Rahim is the third child of his family," the word "third" specifies Rahim's position among his siblings, indicating that there are two other children before him.

Unlike cardinal numbers, which represent quantity (e.g., one, two, three), ordinal numbers tell us the rank or order (e.g., first, second, third). In this case, "third" does not provide information about how many children exist but rather where Rahim stands in relation to them.

Understanding the difference between cardinal and ordinal numerals is crucial for effective communication of sequence and rank in various contexts, such as education, organization, and classification.

Key terms to remember:
- Ordinal numeral: Indicates order/position (e.g., first, second, third).
- Cardinal number: Indicates quantity (e.g., one, two, three).
- Sequence: The arrangement of items in a particular order.