A、Handedness and the genetic theory. B、Identical twins. C、Birth parents and adopted parents. D、Famous left-handed people in the

These days, people who do manual work often receive far more money than people who work in offices. People who work in offices are frequently referred to as "white-collar workers" for the simple reason that they usually wear a collar and tie to go to work. Such is human nature, that a great many people arc often willing to sacrifice higher pay for the privilege of becoming white-collar workers. This can give rise to curious situations, as it did in the case of Alfred Bloggs who worked as a dustman for the Ellesmere Corporation.
    When he got married, Alfred was too embarrassed to say anything to his wife about his job. He simply told her that he worked for the Corporation. Every morning, he left home dressed in a smart black suit. He then changed into overalls and spent the next eight hours as a dustman. Before returning home at night, he took shower and changed back into his suit.      Alfred did this for over two years and his fellow dustmen kept his secret. Affred’s wife has never discovered that she married a dustman and she never will, for Alfred has just found another job. He will soon be working in an office. He will be earning only half as much as he used to, but he feels that his rise in status is well worth the loss of money. From now on, he will wear a suit all day and others will call him "Mr. Blaggs", not "Affred".