Answer:
--He is ignoring other possible explanations.
--He claims that, because one of the implications of his hypothesis is true, his hypothesis correlating obesity and personality traits is also necessarily true.
-- His hypothesis is a deduction from the evidence.
--He is allowing his hypothesis to guide his search for evidence.
Explanation:
There is a lot of psychological and biological correlations between people suffering from obesity and concerned traits. However the researcher is not considering and ignoring the other explanations that are possible. Also, the researcher claims that his hypothesis is true because some of the implications of the hypothesis he provided are true.
The researcher's hypothesis is clearly obtained from the evidences and it can be examined and tested empirically. Moreover, he is claiming that his hypothesis is in order to support his search of evidence. The hypothesis is also related to the evidence from his research. This makes the last two options as incorrect.