[单选题]
A 10-m uniform beam of wevrf9 tl mt(i5* ,fip p0uz6xg,ight 100 N is supported by two ropes at the ends.:g md7c.eadjelvkd 2hm m)jb/6w26 3 b If a 400-N person sits at 2.0 m from the left end of the beam, wh223 .e6b/j d:hedjc gw)l 7m mbdvk6amat is the tension in the left rope?
A. $130 \; N$
B. $250 \; N$
C. $370 \; N$
D. $500 \; N$
