Read the following statement (A–D) :
(A) The cerebral hemisphere are connected together by Grey collagen fibre called corpus callosum
(B) Limbic system along with hypotyhalamus regulate sexual behaviour and emotions
(C) Corpora quadrigemina is found at the dorsal portion of mid brain
(D) Medulla contain the involuntary centre which controls the reflex action of cardiovascular system
How many of above statements are incorrect ?