A Massless Meter Stick on a Horizontal Frictionless Table Top

A massless meter stick on a horizontal frictionless table top is pivoted at the 80-cm mark.A force is applied perpendicularly to the end of the stick at 0 cm, as shown.A second force (not shown) is applied perpendicularly to the stick at the 100-cm end of the stick.The forces are in the plane of the table top.If the stick does not move, the force exerted by the pivot on the stick:

A) must be zero
B) must be in the same direction as 11ec819e_2efc_3887_8138_038aaa537ac8_TB7353_11and have magnitude 11ec819e_8918_c369_8138_29282ad3c2ab_TB7353_11
C) must be directed opposite to 11ec819e_2efc_3887_8138_038aaa537ac8_TB7353_11 and have magnitude 11ec819e_8918_c369_8138_29282ad3c2ab_TB7353_11
D) must be in the same direction as 11ec819e_2efc_3887_8138_038aaa537ac8_TB7353_11 and have magnitude 11ec819e_bc0f_a36a_8138_b5d853ce6ab8_TB7353_11
E) must be directed opposite to 11ec819e_2efc_3887_8138_038aaa537ac8_TB7353_11 and have magnitude 11ec819e_bc0f_a36a_8138_b5d853ce6ab8_TB7353_11