what does CDE describe?
a. a minor arc
b. a major arc
c. a semicircle
d. a chord

The arc CDE shown in the figure attached in the question describes a major arc.
A major arc in a circle is an arc that shows that its measurement is greater than that of 180°.
From the given figure, the arc CDE shows that the arc is greater than 180°, so it can be referred to as the major arc.
Learn more about major arc here:
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