Magic Circle against Chaos / Evil / Good / Law & Spells Known

[shaxberd]

For purposes of a sorcerer who has only so many spells known, is this one spell or four separate spells? I've never really seen any clarification on it.

[Are]

They are four separate spells, just like the Protection from Chaos/Evil/Good/Law spells and the Detect Chaos/Evil/Good/Law spells.