Discourse competence describes the ability to combine utterances and grammatical structures to effectively build cohesive and coherent genres. It is correct to affirm that cohesion: a) can only be detected in grammatically accurate texts. b) is defined by the relationships built by the different meanings conveyed within a text. c) is the bond that pulls together the forms and structures that compose the text. d) only operates within the boundaries of written discourse. e) is a set of sociocultural communicative abilities.