Identify which of the given choices best represents the definition of 'equilibrium'.
(A) a force of attraction
(B) a balance between two or more opposing forces
(C) a state of motion
(D) a state of rest
(B) a balance between two or more opposing forces best represents the definition of 'equilibrium'.
Complete the following task based on the instruction and optional input provided.### Instruction:
Identify which of the given choices best represents the definition of 'equilibrium'.

### Input:
(A) a force of attraction
(B) a balance between two or more opposing forces
(C) a state of motion
(D) a state of rest

### Output:
(B) a balance between two or more opposing forces best represents the definition of 'equilibrium'.