The judge ruled that the evidence was inadmissible on the grounds that it was ______ to the issue at hand.

【正确答案】 D

【答案解析】 句意：法官判定此证据不予认定，因为它与本案无关。be irrelevant to与……无关。irrational不合理的；失去理性的。unreasonable不讲道理的；过分的。invalid无适当根据的；无用的。