Jessica ought to stop working; she has a headache because she （） too long. 

A．Pulitzer and a woman news reporter changed the world overnight.
B．Pulitzer bought the Journal with the help of his reporter.
C．A woman news reporter pretended to be mad.
D．A woman reporter became mad and was sent to a hospital.

A．inventing Roman numerals
B．having advanced technology long ago
C．growing corn and many other plants then
D．supplying other countries with colorful silk