$A$ - Polysaccharides are long chains of sugars.
$R$ - Cellulose is an important component of the plant cell wall.

• A
  $A$ and $R$ are both true.
• B
  $A$ and $R$ are both false.
• C
  $A$ is true and $R$ is false.
• D
  $A$ is false and $R$ is true.