Which statement is the BEST example of value-laden research? Dr. ?Anderson’s line of…

Which statement is the BEST example of value-laden research?
Dr. Anderson’s line of research is on bilingual children because she grew up in a household learning two different languages and firmly believes in its positive effect.
Dr. Mortimer does not use animals in their research.
Dr. Fernandez’s line of research is on happiness in the prison population.
All research is value free not value laden.