Correct Answer: Uncountable-Material Nouns

Solution : The correct answer is option 2
Explanation

Softness is an uncountable noun and leather is a material noun. The correct match will be  Uncountable-Material Nouns
- The nouns that cannot be counted are called uncountable nouns. Example-oil, water, etc.
- Material Nouns refer to materials or substances from which things are made. Example-Cotton, leather, etc.
Additional Information
- Common Noun: A common noun is a name for something which is common for many things, person, or places.
- Abstract Noun: An abstract noun is a word for something that cannot be seen but is there.
- Proper Noun: A proper noun is a name that refers only to a single person, place, or thing and there is no common name for it.
- Concrete Noun: It refers to the things we see and have a physical existence.