According to the text, what is the difference between spontaneous and voluntary recall?

I- Spontaneous recall is the sudden memory without awareness of recall, without deliberate effort.
II- Voluntary recall is the memory with full awareness and deliberate effort; they are selective and relate to some immediate utility.
III- Spontaneous recall is always in relation to the present event.
IV- Voluntary recall is always in relation to the past event.
V- Spontaneous recall is always in relation to the past event.
a) I, II, and III are correct.
b) II, III, and IV are correct.
c) I, III, and V are correct.
d) II, IV, and V are correct.