even though candace already had a new job, she submitted her two week notice and conducted herself in a professional way at her old job because she didn't want to burn bridges. what does "burn bridges" mean?

A - Candace didn't want to ruin her positive relationship with her old employer.
B - Candace wasnt ready to start her new job.
C - Candace was really going to miss her old job.
D - Candace was waiting until her last day it in every one's face that she was leaving.

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