单项选择题A．pressure from work can be reducedB．working women can have more time al, homeC．traffic and commuting problems can be solvedD．personal relationships in offices can be improved

单项选择题A．The bombers bought return tickets from Luton to London.B．The bombers were masterminded by al Qaeda Islamist militants.C．The explosives were not fastened to the bombers.D．Two of the bombers were father-to-be.