两个填空求解析

dirtybrianUID：3521949

It is his dubious distinction to have proved what nobodywould think of denying, that Remero at the age of 64 writes with all the characteristics of (  ).
A, maturity  B, fiction   C, inventiveness    D, art    E, brilliance

Music, for example, is best appreciated in spaces that are reverberant, a condition that generally makes speech less ().
A, abrasive   B,intelligible   C, ubiquitous
第一题是完整的，第二题本来是个三空，第二空的答案我死活理解不了。求大神们讲解。