According to Salvador et al. (1999), what were the factors that motivated the shift in the focus of educational psychology to an instructional, beh...

According to Salvador et al. (1999), what were the factors that motivated the shift in the focus of educational psychology to an instructional, behavioral approach in the late 1960s?

I. The excessive importance given to school education, to the detriment of other educational practices and activities, and the urgency to respond to school problems.
II. The progressive rise of cognitive psychology in explaining the processes underlying learning, individual differences, and, to a lesser extent, development, displacing the predominance of Skinner's operant conditioning theory.
III. The emergence of a series of disciplines that also aim to study educational phenomena, such as educational sociology, educational economics, and educational planning, highlighting the insufficiencies and limitations of psychological analysis to understand educational phenomena globally.
a) Only I is correct.
b) Only II is correct.
c) Only III is correct.
d) I and II are correct.
e) I, II, and III are correct.