It will follow a general noun and is not set off by commas is true regarding a restrictive adjectival clause. Since this clause is restrictive, it means it is essential for the meaning of the noun and cannot be excluded.
Answer:
1. Healfdene
2. Until he was old
3. Heorogar, Hrothgar, Halga teh good and a daughter who married Onela
Explanation:
Forner pdime mibister of Tamil Nadu.
