Which of the following compound is/are used for oxygenating the submarine or space shuttle?

Because it eliminates ${\mathrm{CO}}_2$ and creates ${\mathrm{O}}_2$, sodium peroxide is used to clean the air in submarines and other enclosed areas.
Because it is utilised in oxygen cylinders in space and submarines, ${\mathrm{KO}}_2$(potassium superoxide) Because it absorbs ${\mathrm{CO}}_2$ and raises ${\mathrm{O}}_2$ content, ${\mathrm{KO}}_2$ is utilized in oxygen cylinders.
Since potassium superoxide absorbs${\mathrm{CO}}_2$ and raises the quantity of oxygen, it is utilised in oxygen cylinders in space and underwater.