two questions thanks

The outcome of monetary policy can never be certain because Select one: O a. time lags disrupt policy planning O b. unemployment is always changing O c. the slope of the AS curve is never clear O d. the natural rate of unemployment lags behind the actual rate of unemployment O e. the concept of a natural rate of unemployment is still not accepted by all policy makers In a labor market diagram, the point at which the labor supply curve crosses the labor demand curve is Select one: t of O a. the point at which excess demand for labor drives the wage rate upward b. the point at which everyone who wants to work is able to find a job O c. the point at which all jobs are filled at the wage employers prefer to pay O d. a point at which we have excess labor supply, causing unemployment O e. the point at which all workers are employed at the salary at which they would prefer to be employed