Thomas Edison created a commercially viable incandescent light bulb in 1879. How did this invention change the American workplace? A It forced workers to specialize in certain tasks. B It reduced efficiency in the workplace. C It allowed workers to work longer hours. D It led to the end of child labor laws.

first second and third

explanation:

answer

wages and job opportunities have grown slowly since the recovery began five years ago, while technology continues to change the nature of work. while many workers enjoy opportunities unimaginable a generation ago, many others feel the economy has left them b

explanation:

postive making stock not fall

negative   scams and   currpurt buisnesss practices