Which of the following best defines the word "aggressive" (Line 3, Para.5)

A．manage their patients incompetently
B．give patients more medicine than needed
C．reduce drug dosages for their patients
D．prolong the needless suffering of the patients

A．Doctors will be held guilty if they risk their patients' death.
B．Modem medicine has assisted terminally ill patients in painless recovery.
C．The Court ruled that high-dosage pain-relieving medication can be prescribed.
D．A doctor's medication is no longer justified by his intentions.