Identify the given diagrams and mark the correct option.

• A
  $A, D$ are compound while $B, C$ are simple leaves.
• B
  $A, D$ are simple while $B, C$ are compound leaves.
• C
  $A, B$ are simple while $C, D$ are compound leaves.
• D
  $A, B$ are compound while $C, D$ are simple leaves.