The correct answer to this open question is the following.
According to your question, there are only two parts to be answered, a) and b).
Being that the case, we can comment on the following.
A) This is an observational study and not an experiment because the research was only limited to observation, participants never receive any kind of treatment or another interaction to experiment with them.
B) Who were the subjects of the study?
The subjects of this study were women aged 65 and older who were tracked for several years. The observation revealed that those women who had a vitamin B12 deficiency were twice as likely to suffer severe depression as those who did not.
So, according to the American Journal of Psychology, these were the women observed during the study. There were no more experiments, interactions, or activities applied to them in order to consider it an experiment.
Let's remember that in order to consider an experiment as such, there has to be another component of the study, and the experimental part of it that has to be tested and proved passing the scientific method to conclude in something valid.
Whether your mortgage payment changes depend primarily on three factors. The factors are the type of mortgage loan you have, changes in your property taxes and changes in your homeowner's insurance premium. There are also some miscellaneous issues that will change your mortgage payment. We look at how this works.
Civil Rights <span>refers to the laws that protect citizens from undue or unwarranted government intrusion into their lives, either personal or as an organization.
Civil Rights are important because they help maintain equality, freedom and liberty for all citizens in a nation. Civil Rights apply to most domains and institutions in society including education, employment, housing, etc. An example of civil rights is equal employment opportunities for people despite their gender, ethnicity, religion or sexual orientation. </span>
Answer:
C) Voted in elections governing a multi-nation state.