Experiments are the best research method for finding causal relationships between variables because they incorporate and into their design. a. control conditions; self-selection b. control conditions; random assignment c. independent variables; informed consent d. external validity; dependent variables

in 342 bc j._c. egypt fell into the hands of the persians, under the reign of nectanebo ii

greek city-states unite in a revolt against the persian empire at the beginning of the fifth century bc. j.-c  

from the year 660 or 659 bc ad, cyrus preached the revolt against the medes to deliver the persians.

answer; belief perseverance;