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I dint have the options, but scribes were some of the only people who knew how to read and write in ancient times.
Things scribes did: writing letters for fellow villagers who couldn't write, recording the amount of crops harvested, calculating the amount of food needed to feed the workers, keeping accounts and ordering supplies for temples and the army.
Things scribes did not do: Write laws, and compose emails ;)
*cough cough* avoid posting useless questions like this since this is a homework app.
Have a great day cya)
I believe the answer is: physical development
In longitudinal study same subjects over a certain period of time. From the study above, we can see that on-field-performance is the dependent variables. Since there is no way for the researchers to conduct and proof the psychological development, physical development ia the most suitable choice.