If a monopsonist is hiring factors, it will choose to hire that quantity at which

$q,$ and pay a wage rate that is

the supply curve of labor intersects the demand curve for labor; equal to labor's MRP

MRP $=$ MFC; less than labor's MRP

MRP $=$ MFC; equal to labor's MRP

$MR=$ MC; equal to labor's MRP

the supply curve of labor intersects the demand curve for labor; less than MFC