【名词&注释】
基层组织(basic organization)、使用权(use right)、不一致(inconsistency)、地役权(easement)、不安抗辩权(unsafe right of defense)、先履行抗辩权(the right to implement the demurrer fir ...)、不完全(incomplete)、土地抵押权、同时履行抗辩权(right to defense of simultaneous perfor ...)、先诉抗辩权(right of plea for preference claims)
[单选题]在先履行一方构成不能履行、拒绝履行、迟延履行、不完全(incomplete)履行但未请求后履行一方履行时,( )的行使不需要明示。
A. 不安抗辩权
B. 先履行抗辩权
C. 同时履行抗辩权(right to defense of simultaneous perfor)
D. 先诉抗辩权(right of plea for preference claims)