[单选题]
A 10-m uniform beam of h+ y1kqjux sv8m7wk11*a.qhp weight 100 N is supporidx8v ek; 88(rmt48 qqjna 0ujted by two ropes at the ends. If a 400-N person sits 8kqtqu48j;r ai8(jve8nm 0d x at 2.0 m from the left end of the beam, what is the tension in the right rope?
A. $130 \; N$
B. $250 \; N$
C. $370 \; N$
D. $500 \; N$
