Explanation:

A. Absolve: Absolve means to set or declare (someone) free from blame, guilt, or responsibility. This is a synonym of 'exculpate', not an antonym.\nB. Arraign: Arraign means to call or bring (someone) before a court to answer a criminal charge, implying accusation or formal charging. This is the direct opposite of 'exculpate', which means to clear from blame.\nC. Entail: Entail means to involve (something) as a necessary or inevitable part or consequence. This word is semantically unrelated to 'exculpate'.\nD. Exude: Exude means to discharge (moisture or a smell) slowly and steadily, or to display (an emotion or quality) strongly. This word is semantically unrelated to 'exculpate'.