Incorporate means take in or contain (something) as part of a whole; include. The opposite of incorporate is exclude, or deny (someone) access to a place, group, or privilege. Hence, Option D is correct. Among the rest of the options, dissect means to analyse (a text or idea) in minute detail, differentiate means recognize or ascertain what makes (someone or something) different, disjoin means separate or disunite. These options do not express the intended antonym, hence incorrect.