Answer:
naturalistic observation
Explanation:
In naturalistic observation, researchers will gather data by directly observing the subjects in their natural habitat without making any intervention.
This is what Professor Ober is doing.
Professor Ober wants to collect a data about development of their physical skills among children. This means that the <u>children are his research subjects.</u>
To collect his data, professor Ober observed the children in the playground (which is the children's natural habitat). He also did not told the children to do anything , he just quietly observe and let the children do what they usually do. (not making any intervention)
The answer is option a- as the European colonisers attempted to covert the Indigenous people to Christianity, for the sole purpose of establishing a society that was, in their view, more colonial.
The effect is “not for their class” and also the cause is “appointed people for there abilities”
