If something is OK then it is...
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All right
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Allright
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Al-right
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All-right
A
Correct answer
Explanation
The correct spelling is 'All right' as two words. Options B, C, and D incorrectly combine or hyphenate it. While 'alright' is becoming accepted in informal usage, standard English requires 'all right' as separate words. Option D is also marked as duplicate in the options.