The answer is A) Happiness
Please could you indicate what changes are there discussed by the text
<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be the "objectivity" of the researcher, since quantitative data is often indisputable from an objective sense, whereas qualitative data can be interpreted in different ways. </span></span>
Extrinsic motivation is the desire to perform a behavior due to promised rewards or threats of punishment.