Which of the following represent the correct order of increasing first ionisation enthalpy for `Ca,Ba,S,Se` and `Ar`

Which of the following represent the correct order of increasing first ionisation enthalpy for `Ca,Ba,S,Se` and `Ar`
A. `S lt Se lt Ca lt Ba lt Ar`
B. `Ba lt Ca lt Se lt S lt Ar`
C. `Ca lt Ba lt S lt Se lt Ar`
D. `Ca lt S lt Ba lt Se lt Ar`

Which of the following represent the correct order of increasing first ionisation enthalpy for `Ca,Ba,S,Se` and `Ar`

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