The answer is letter
A.
Spinach is also known
as the super food because of its high concentrations of various vitamins and
minerals. It is also contains powerful antioxidants like beta-carotene, lutein,
and zeaxanthin that are responsible for immune system protection. The best way
to prepare spinach is to boil it for about a minute. This is to help reduce concentrations
of oxalic acids while, minimizing the loss of its major nutrients and flavors.
It is known to be the super food because it has nutritional contents that can
prevent cancer.