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【单选题】
人类目前使用的氦气主要来自油气钻探过程中产生的副产品，总量有限，难以满足需求。首次“有意地”发现大量氦气，是最近研究人员与开采企业合作的成果，他们采用新方法在非洲东部坦桑尼亚境内发现储量约为15亿立方米的氦气，总量足够120万台医用核磁共振仪使用。这一地点处于东非大裂谷范围内，剧烈火山活动产生的热量使古老岩石中蕴含的氦释放到浅层油田中。此次开采可能成为确保未来社会氦气需求的转折点。 上述结论的成立，需要补充以下哪项作为前提？A.
可以预见的未来不会出现剧烈的火山活动
B.
东非大裂谷的地质地貌在长期内不再发生变化
C.
此次所用探测方法有助于在更多地方发现和开采更多氦气
D.
未来人类不再被动等待来自油气钻探过程中产生的副产品
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