How should a pilot terminate the read-back of an ATC clearance ?

Question

PPL(A) - Licenza Pilota Privato (Aerei) - Comunicazioni in inglese - How should a pilot terminate the read-back of an ATC clearance ?

QuizVDS · Accepted Answer

With his own aircraft call sign

QuizVDS · Answer

With the word `wilco`

QuizVDS · Answer

With the ATC ground station call sign

QuizVDS · Answer

With the word `roger`

ppl(A): How should a pilot terminate the read-back of an ATC clearance ?