D. intermedia MUST BE STRATIFIED
These weren't
https://lh3.googleusercontent.com/gMZmg46XkwWGSWQ5WhdXX6yu9lmf_rNlKuPmkxN2YXgMYp9VxaYYmgOswmFs--6JxVh2yRN4XGjnQIVUJYNZ_ykoLCM0NS6nZTcQ8gPeEbfJ8T2kmlPA7qxhgtYF75-iusZQey4bYg=w2400
These weren't
https://lh3.googleusercontent.com/gMZmg46XkwWGSWQ5WhdXX6yu9lmf_rNlKuPmkxN2YXgMYp9VxaYYmgOswmFs--6JxVh2yRN4XGjnQIVUJYNZ_ykoLCM0NS6nZTcQ8gPeEbfJ8T2kmlPA7qxhgtYF75-iusZQey4bYg=w2400