Which of the following is the conclusion of the statement "an angle has exactly one bisector"?

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Below are the choices that can be found from other sources:

if an angle exists
then it has exactly one bisector
if an angle has exactly one bisector

The answer is if an angle has exactly one bisector

3you can not round up to four, as there was not a full payment for the fourth night, so uou would round down to 3