Answer : The correct answer is a) Songs of Innocence .
Blake's songs of Innocence and experience juxtaposes the innocence of childhood and harsh realities and corruption of adult hood .
Song of Innocence says about the hopes and fears of childhood and the thoughts of child as adults . It draws attention towards positive aspect of human before entering into adulthood world of corruption.
While songs of experience states about corrupt world and destroyed innocence of adulthood . It also shows repressive effect like jealousy , shame , secrecy etc .
Hence we can song of innocence shows more positive aspect of life .
