Final answer:
The correct in-text citation in APA style for the given source is (Science Nine, 2010), following the APA guidelines.
Step-by-step explanation:
The correctly formatted in-text citation for the source given would be a) All about global warming (Science Nine, 2010). This format follows the APA (American Psychological Association) guidelines, which are commonly used for citing sources within the social sciences. This format indicates the author or title of the source when the author is not known, and the year of publication. Other details such as URLs, page numbers or publication dates are typically not included in APA in-text citations but are included in the references page.