Help me pleasee I’m not sure I’m doing theses correctly ?

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Answer:
(d) ∠AIS
Step-by-step explanation:
The tangent SF intersects the circle at one point, point I. Any angle it forms with a chord must be a chord that terminates at point I. There are two of them: AI and CI.
The angles these chords make with tangent SF are ...
Of these, only the first (∠AIS) is listed among the answer choices.