الطَّالِبَاتُ كُرِّمْنَ — The female students were honored.
الطَّالِبَاتُ: nominative topic, sound feminine plural.
كُرِّمْنَ: feminine-plural past passive; attached nūn al-niswa is the passive subject, with the verb phrase as predicate.
The feminine plural form belongs to a pronominal subject, not a following overt noun.