The correct option is C Truant
'A child who stays away from school without any good reason' is called Option D, Truant. Option A, 'Vagabond' is a person who wanders from one to another without home or job. Option B, 'Delinquent' is a young person who behaves in an illegal way. Option C, 'Schizophrenic' is a person who cannot understand what is real and what is imaginary. Thus, options A, B and C are incorrect and the correct word for the given phrase is option D, Truant.