Regarding the State's Overall Political Party Leanings, Which of the Following

Regarding the state's overall political party leanings, which of the following is evidence that California is "light blue" or "purplish" rather than "solidly blue"?

A) Republicans and Democrats usually work together in a bipartisan spirit of compromise.
B) There's strong electoral competition, demonstrated by the closeness of most races for the Assembly and the Senate, and the close party split in both the Assembly and Senate (almost as many Republicans as Democrats) .
C) Rising number of people who register as "no party preference" (24%) and only a plurality are Democratic (43%) ; polls show voters would choose a viable third party if given the chance, indicating weak connections to parties.
D) There's no evidence that the state is anything other than overwhelmingly Democratic.