72. 在遠端點測量所感應的串音信號稱為遠端串音（FEXT），而 UTP 採 4 對線傳輸方式須考慮其它 3 對線對 1對線的 FEXT 稱為？
(A)ELFEXT(Equal Level Far-End Crosstalk)
(B)PSELFEXT(Power Sum Equal Level Far-End Crosstalk)
(C)PSNEXT(Power Sum Near-End Crosstalk)
(D)NEXT(Near-End Crosstalk)。