Answer:
option A is correct.
Explanation:
Minor arcs are associated with less than half of a rotation, so minor arcs are associated with angles less than 180°
Since, A minor arc is an arc smaller than a semicircle. A central angle which is subtended by a minor arc has a measure less than 180°.
The minor arc is equal to the measure of the central angle.
We could also see the angle from the figure attached to the answer.
Hence we will obtain an acute angle.
Hence, option A is correct.