©Brain also known as the first computer virus for MS-DOS was written by two brothers belonging to which among the following countries?

Q. ©Brain also known as the first computer virus for MS-DOS was written by two brothers belonging to which among the following countries?
Answer: Pakistan
Notes: Brain is the first PC virus in the world. It began infecting 5.2" floppy disks in 1986. It was the work of two brothers, Basit and Amjad Farooq Alvi of Pakistan.