True, a circle could be circumscribed about the given quadrilateral.
"Circumscribed circle is the circle which passes through all the vertices of the given geometrical polygon. Its center is known as circumcenter."
" Quadrilateral is a geometrical figure which has four sides and four vertices. Sum of all the interior angle is equals to 360°."
According to the given figure,
∠A and ∠C are of measure 90°, if we draw BD as diameter then ΔBAD and ΔBCD inscribed in a semi circle are right angled triangle.
Therefore, a circle circumscribed about the quadrilateral.
Hence, we conclude that Option A is correct.
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