Select all that were the source for the Direct Labor favorable effeciency variance. a. Actual direct labor cost per hour was greater than budgeted direct labor cost per hour. b. Actual number of jobs completed was greater than budgeted number of jobs. c. Actual number of jobs completed was less than budgeted number of jobs. d. Actual direct labor hours per job were less than budgeted direct labor hours per job. e. Actual direct labor hours per job were greater than budgeted direct labor hours per job. f. Actual direct labor cost per hour was less than budgeted direct labor cost per hour