Final answer:
The correct phrase to use is 'I'm sorry for the inconvenience'. Using the phrase 'I'm sorry for the inconvenience' shows a more personal and sincere apology compared to 'I apologize for the inconvenience' which sounds more formal.
Step-by-step explanation:
The correct phrase to use is I'm sorry for the inconvenience.
Using the phrase 'I'm sorry for the inconvenience' shows a more personal and sincere apology compared to 'I apologize for the inconvenience' which sounds more formal.
It's important to consider the context and level of formality when choosing the appropriate phrase for an apology.