Saying There Is "High Contiguity Between the Non-Functional Stimulus and the Unconditioned

Multiple Choice

Saying there is "high contiguity between the non-functional stimulus and the unconditioned stimulus" suggests that:

A) If the non-functional stimulus is presented, the unconditioned stimulus will follow
B) The unconditioned stimulus is presented very close in time to the non-functional stimulus
C) The association between the non-functional and the unconditioned stimulus will be slow to form
D) The occurrence of the unconditioned stimulus is dependent on the presentation of the non-functional stimulus