14. Two beams, simply supported at their ends, jointly support a load P = 3500 lb. applied to the upper 6-ft. beam at its midpoint.  The beams are identical except for length and cross at their midpoints.  Find the load carried by the lower 9-ft. beam.
 

a. 700 lb
b. 800 lb
c. 1000 lb
d. 1750 lb
e. 2700 lb