Final answer:
Creep is a very slow movement of sediment down a slope, caused by the force of gravity over time. Therefore, the given statement is True i.e A.
Step-by-step explanation:
It is true that sediment moves very slowly down a slope during creep. Under the effect of gravity, soil, regolith, and rock fragments progressively travel downslope in this type of mass wasting or mass movement. Particles that move slowly and continuously, generally undetectable for brief periods of time but noticeable for longer ones, are known as creep.
A few of the variables that affect this occurrence are soil moisture, slope gradient, and vegetation presence. Deformation of structures and landscapes can occur over time due to the slow migration of silt downslope caused by creep. As a result, it is accurate to say that "creep is very slow movement of sediment down a slope."
Therefore, the given statement is True i.e. A.