Select the correct option:
$(1)$ The excretory organ in prawns is the green gland / Malpighian tubules.
$(2)$ Renin is secreted by the $JGA$ / arterial wall.

• A
  $(1)$ Green gland,$(2)$ $JGA$
• B
  $(1)$ Malpighian tubules,$(2)$ $JGA$
• C
  $(1)$ Green gland,$(2)$ Arterial wall
• D
  $(1)$ Malpighian tubules,$(2)$ Arterial wall