Which statement is true of the role of theory in nursing? Select all that apply. A. it is the central and core phenomenon of nursing.

B. it guides practice and generates models of testing in research.

C. it is the reason for and the value of evidence

D. it determines what counts as evidence

E. it is the reason for nursing's existence

A. it is the central and core phenomenon of nursing.

Explanation:

Nursing theory aims to describe, predict and explain the phenomenon of nursing (Chinn and Jacobs1978). It should provide the foundations of nursing practice, help to generate further knowledge and indicate in which direction nursing should develop in the future (Brown 1964).

the constitution of the united states gave congress the absolute authority over immigration laws

the answer is a) the proclamation of 1763.