This is the 15114th most frequent Turkish word.
seçtikleri
"The ones they chose/select."
Here, 'seçtikleri' describes the topics selected by the students, thus emphasizing ownership and connection.
Öğrenciler, seçtikleri konuları sınıfta tartıştı.
The students discussed the topics they chose in the class.
In this usage, 'seçtikleri' is connected to the strategy preferred by the team, integrating action and consequence.
Ekip, seçtikleri stratejiyle büyük başarı elde etti.
The team achieved great success with the strategy they chose.
In this sentence, 'seçtikleri' is used as a relative clause referring to 'the projects the participants chose,' implying possession and subject-object relationships.