Final answer:
The root word 'rupt' in 'interrupting' means 'Break'. It is derived from Latin, indicating a break or burst, and it is a common root in English for words related to breaking or bursting.
Step-by-step explanation:
In the word "interrupting," the root word "rupt" means a. Break. The root "rupt" is derived from the Latin "rumpere," which means to break or burst. Therefore, when we see words with the root "rupt," such as "interrupt," "disrupt," or "erupt," they all have something to do with breaking or bursting into something.