Question: please answer the following question 2 points If X is a real-valued random variable with finite E[|X |], then A. E X ] is well-defined

please answer the following question

2 points If X is a real-valued random variable with finite E[|X |], then A. E X ] is well-defined provided X is symmetric; B. E X] is well-defined and finite; C. E[X] could be infinite, while still well-defined; D. E X3] is well-defined provided X is standard Cauchy

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