8.有一五邊形閉合導線，各角為A、B、C、D、E依順時間排列，若各內角角度值∠A=126°36'32"、∠B=46°16'52"、∠C=78°17'32"、∠D=95°46'48"、∠E=193°02'21"，則平差改正後，下列何者角度正確？(A)∠A=126°36'31"(B)∠B=46°16'50"(C)∠C=78°17'29"(D)∠D=95°46'46"