Just fyi... Realise and realize are different spellings of the same word, and they can be used interchangeably. Both are common throughout the English-speaking world, though in different areas. Realize is preferred in American and Canadian English, while realise is preferred outside North America.

i.e. both spellings are acceptable

Just fyi

Realise and realize are different spellings of the same word, and they can be used interchangeably. Both are common throughout the English-speaking world, though in different areas. Realize is preferred in American and Canadian English, while realise is preferred outside North America.