Hich of the following choices correctly notes a characteristic associated with perfection standards and one associated with practical standards? perfection standards practical standards a. attainable in an ideal environment. incorporate abnormal occurrences when setting quantity and efficiency targets. b. result in many unfavorable variances. are often attainable by workers. c. tend to boost worker morale over the long-run. generally, are preferred by behavioral scientists. d. generally, are easily achieved by workers. result in both favorable and unfavorable variances. e. generally, are preferred by behavioral scientists. are easier to achieve than perfection standards.