Question

multiple choice question recall that selenium has numerous functions, including: regulating fluid status glutathione peroxidase activity brain and neural tube development

Explanation:

Selenium is a trace - element that is a component of glutathione peroxidase, an antioxidant enzyme. It is not directly involved in regulating fluid status (which is mainly related to electrolytes like sodium and potassium), and folic acid is more associated with brain and neural tube development.

Answer:

glutathione peroxidase activity