【单选题】The major point in differentiating an exterior pattern from an interior pattern is ( ).
A.
a superficial pulse for exterior pattern and a deep pulse for interior pattern
B.
An acute condition for exterior pattern and a chronic condition for interior pattern
C.
a superficial, mild condition for exterior pattern and a deep, severe condition for interior pattern
D.
concurrent chills (aversion to cold) and fever for exterior pattern and either chills (aversion to cold) alone or fever alone for interior pattern