单选题 The university should ______ the function of the alumni fund so that its importance will be better appreciated by the school's graduates who are asked to contribute to it.
【正确答案】 B
【答案解析】(elucidate解释，阐明)。句意为：大学应当说明校友基金的作用，以便让该校受到呼吁要为校友基金作贡献的毕业生更好地理解它的重要性。A．revoke取消；C．ascertain查明；D．prescribe规定，开药方。