Option '3' 'Ali' is a proper noun, as it is a male name used in the Muslim world.
Also, using different spellings it can be used in the western world both for men and women.
For men it is 'Ally' short for Alistair. For women it is 'Alli/ally/alley' short for 'Alison'.
The other two options are common nouns , because you can place the (in)definite article (a/the) immediately in front.
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
'save more groceries'. Save is a verb More is an adjective Groceries is a common noun.
Pencil proper or common noun
The noun Ali is a proper noun, a person's name. A proper noun is the name of a specific person, place or thing; a proper noun is always capitalized.
Boston is a proper noun.
Garfield is a proper noun.