Final answer:
Not all of the options are correctly capitalized. The incorrect answer is OB. Winter.
Step-by-step explanation:
Out of the given options, the one that is not correctly capitalized is OB. Winter. In English grammar, days of the week, months, and the names of people such as Dr. Harris are proper nouns and need to be capitalized. However, seasons like winter are not capitalized unless they are part of a proper noun like a title or the name of a festival.
Learn more about Capitalization rules in English grammar