Which sentence correctly uses a sound feminine plural as an accusative direct object?

Noun Case Classes: Type 2 — Sound Feminine Plural

• رَأَيْتُ طَالِبَاتٍ.
• رَأَيْتُ طَالِبَاتٌ.
• مَرَرْتُ بِطَالِبَاتٌ.
• حَضَرَتْ طَالِبَاتٍ.