[单选题]
A 10-m uniform beam of we) ks5kgd6 lau4b(b)ayight 10 -wuk;p,)n sv9k(rjym: zq7ll0 N is supported by two ropes at the ends. If a 400-N person sits at 2.0 m from the left end of the beaml(l7;zj9ysw kn uv k:-m,rpq), what is the tension in the right rope?
A. $130 \; N$
B. $250 \; N$
C. $370 \; N$
D. $500 \; N$