In a single blind study, the participant to which group he or she has been assigned, and the researcher to which group each participant has been assigned.

is unaware; is aware

Explanation:

Single bind study: In psychology, the term "single-blind study" is described as one of the different research methods that involve a particular research procedure whereby the researchers or the experimenters don't tell the subjects or participants whether they're being provided with a control treatment or a test treatment.

Example: In a single-blind study, participants don't know whether they're taking a placebo or experimental drug.

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.

answer; dishonor to his country,polyneices was a traitor;