Sandra Strongly Believes That Attending Daycare Is Detrimental to Children's

Sandra strongly believes that attending daycare is detrimental to children's development so she decides to write her psychology term paper on this topic. She does a literature search and finds several sources supporting her opinion, but she finds that the majority of research indicates that children attending daycare experience healthy development. She writes a paper using the sources that find negative associations with daycare attendance. This is an example of ________.

A) confirmation bias
B) confounding variable
C) correlational research
D) observer bias