Final answer:
The abyssal plain lies between the foot of a continental rise and a mid-ocean ridge.
Step-by-step explanation:
The foot of a continental rise and a mid-ocean ridge are both features of the ocean floor. Between the foot of a continental rise and a mid-ocean ridge lies the abyssal plain. The abyssal plain is a flat, sediment-covered region of the ocean floor that is found between these two features.