The formation of associations between two stimuli, which occur sequentially in time, is referred to as a. operant conditioning b. classical conditioning c. observational conditioning d. associative conditioning

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.