单项选择题

What is the news mainly about

A.Two of the prisoners released by India as part of the deal to resolve the hijack of an Indian Airlines plane have appeared in Pakistan.
B.Two of the prisoners released by Pakistan as part of the deal to resolve the hijack of an Indian Airlines plane have appeared in India.
C.Two of the prisoner went to Karachi and Muzaffarabad in Pakistan-controlled Kashmir.
D.A hijack happened.