Correct Answer: Hieararchy

Solution : The incorrectly spelt word is the fourth option.

The correct spelling is hierarchy , which refers to a system of ranking or organising things. It refers to a system or organisation in which people or groups are ranked one above the other according to status or authority.

The meanings of the other options are as follows:

• Grateful: Feeling or showing thanks or appreciation; thankful.

• Immigrate: To come to a new country or region to settle there.

• Ignorance: Lack of knowledge, understanding, or awareness about something.

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