Sine qua non the foreign phrase meansAprerequisiteBsincerelyCindefinitelyDnon-refundableAnswer: A. prerequisite Read Explanation: sine qua non - a prerequisite Sine qua non is a Latin phrase that translates literally into "without which not. " When used in English prose, it refers to an essential condition or qualification; an indispensible thing or absolute prerequisite. Read more in App