4. California’s official nickname is the _______ ? A. Sunflower State C. Land of opportunity B. Golden State D. Evergreen State 5. ___has the largest population in the USA. A. California C. Alaska B. Washington D. Texas 6. California entered the Union on September 9, 1850, as the ______state. A. thirtieth C. thirty-eighth B. thirty-second D. thirty-first