As the demand for domestic steel has been increasing in China an

As the demand for domestic steel has been increasing in China and among domestic appliance manufacturers, the nation's steel manufacturers are producing at full capacity.
A、随着中国家电制造商对国产钢的需求不断增加，中国的钢铁制造商正在尽最大力生产。
B、由于中国以及家用电器制造商对钢铁的需求在持续增加，整个国家的钢铁生产商正在开足马力生产钢铁。
C、由于中国家用电器制造商对钢铁的需求在持续增加，整个国家的钢铁制造商正在加大力度生产钢铁。
D、随着中国和家电制造商对国产钢的需求不断增加，中国的钢铁制造商正在努力生产。
【正确答案】：B