Question: Consider a transaction dataset that contains five items, {p, q, r, s, t}. Suppose the confidence of the rule {p, q} --> {s} is 100%,

Consider a transaction dataset that contains five items, {p, q, r, s, t}.

Suppose the confidence of the rule {p, q} --> {s} is 100%, which of the following statements is true:

a.

All transactions that contain {p, q} also contain {p, s}.
b.

The support counts of {p, q}, {p, s}, and {q, s} are identical.
c.

Both options are correct.
d.

None of the two options is correct.

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