Correct Answer: ommission

Solution : The correct choice is the fourth option.

The incorrectly spelt word is "ommission", which contains an extra letter "m". Omission is the correct spelling, and it is the action of leaving out or excluding something.

The meanings of the other options are as follows:

• Accommodate: It means to provide lodging or room for someone.
• Occurred: It refers to something that happened or took place, typically an event or incident.
• Oppressed: It describes a state where someone is subject to harsh or unjust treatment, often by those in authority or with power.