12. in which these statements is scientific rationale for distinguishing type i and type ii most clearly illustrated?

a. type i schizophrenics most likey to be a threat to themselves and others.
b. if subject x and y are identical twins and x is diagnosed with type 1 schizophrenia, we can be nearly 100 percent assured that y will also develop type i schizophrenia.
c. type ii schizophrenics are most likely to be a threat to themselves and others.
d. the symptomatic profile for type i and type ii schizophrenia is different.