Where does middle lamella occur?
Outer to the primary wall
The correct option is C.
Explanation of correct option:
Explanation of incorrect options:
Option A:
Middle lamella does not occur outer to the primary wall.
Option B:
Middle lamella is not found inner to the primary wall.
Option D:
Middle lamella occurs outer to the primary wall and is not found inner to the secondary wall.
Final answer: Middle lamella occurs outer to the primary wall.