A patient is able to fluently produce language.However,that language is incomprehensible to listeners.The patient is most likely suffering from ______.

A) Broca's aphasia
B) expressive aphasia
C) prosopagnosia
D) Wernicke's aphasia

The fat cells release a hormone that in effect tells the brain how much fat the body has, thereby decreasing appetite. That hormone is

A) vasopressin.
B) oxytocin.
C) leptin.
D) aldosterone.