Which of the following statements are applicable to brown algae?
$(I)$ They contain pigments like chlorophyll $a$,chlorophyll $c$,carotenoids,and xanthophylls.
$(II)$ They vary in color from olive green to various shades of brown.
$(III)$ Food is stored as complex carbohydrates,in the form of laminarin or mannitol.
$(IV)$ The cell wall is composed of cellulose and algin.
$(V)$ The cell wall is covered on the outside by a gelatinous coating of algin.

• A
  $(I), (II), (III), (IV)$
• B
  $(II), (III), (IV), (V)$
• C
  $(I), (II), (III), (IV), (V)$
• D
  $(I), (II), (IV), (V)$