Obidiya is an Igbo-language drama that is a set text on the JAMB Igbo literature syllabus. The question asks for the author of this play.
The author of Obidiya is Godfrey Udechukwu. He wrote this play to examine social issues in Igbo society, particularly the treatment and oppression of women. The play has become an important text in Igbo literary studies and is frequently examined in national examinations.
The other individuals listed are also notable Nigerian/Igbo writers but did not write Obidiya. I.N.C. Aniebo is known for works in English prose. Zulu Sofola was a prominent Nigerian playwright who wrote primarily in English. Nkem Nwankwo was known for novels such as Danda. Students preparing for Igbo literature examinations should memorise the authors of all set texts on the syllabus.