Answer:
The correct option is C.
Step-by-step explanation:
Given information: In circle O, AB=8.02, the distance of cord AB from the center is 8.31, the distance of cord CD from the center is 8.31.
According to the chords equidistant from the center theorem, if two cords are equidistant form the center, the length of both cords are equal.
Since the cords AB and CD are equidistant form the center O, therefore
[tex]AB=CD[/tex]
[tex]8.02=CD[/tex]
The length of cord CD is 8.02 units.
Therefore correct option is C.
