Forces and Couples Are Applied to ABCDE as Shown in the Figure

Forces and couples are applied to ABCDE as shown in the figure. All turns of ABCDE are 90º angles $90 ^ { \circ }$ . The statically equivalent moment at A ( $\left( \boldsymbol { M } _ { \mathrm { A } } \right)$ for the force2couple system is (in N ∙ m) :

A) $- 160 i + 575 j + 1480 k$
B) $160 i + 425 j + 1380 k$
C) $- 160 \boldsymbol { i } + 325 \boldsymbol { j } + 1380 \boldsymbol { k }$
D) $- 160 i + 325 j - 1480 k$