Which Boolean operator is always implied between two search terms, unless otherwise specified?

An agency in the U.S. Department of Labor, ________, provides a Web site that guides you through an analysis of your computer workstation to help avoid computer-related injury

A) ITA B) ITU C) OSHA D) OSCA

When a citation field is inserted into a document, the sources stored in the Source Manager display in the ________

Fill in the blank(s) with correct word