He defended the gonvernment's equivocation
regarding the mysterious contrail as resulting
not from _______ as crytic say, but from a
benightedness about its own doing that is almost
inevitable, given the multitudinous-ness of its
agencies.
1. obtuseness
2. mendacity
3. abnegation
4. guilelessness
5. treacherousness
답은 2번이라는데
문장 해석이랑 답 추론 근거 부탁드릴게요.