Answer:
People who are engaged in writing social studies adapt a (B) third person's point of view to avoid bias and demonstrate fair-mindedness.
Step-by-step explanation:
As social studies is based on giving the correct views and opinions on social issues, there must be no discrimination of any particular group or any other communities. People who are engaged in writing such things must be clear and confident about their view points. It is their duty to convey the right things to people. That is the reason for them to have a open minded view. They must not project the wrong things as well as develop wrong strategies among people. They have to support the social issues whatever it may be. For these reasons, they mostly use third person's view to avoid any bias.