Select a classification for File3 so that:

• Alice can read, but not write to File3
• Bob can read File3, but can't write it.
• Charlie can write File3, but can't read it.
• Eve can write to File3 but can't read it.

Alice has TopSecret, {A,B,C}. Bob has Secret,{A,B,C}, Charlie has Confidential,{C} and Eve is Unclassified.

File3 should be classified as

a.	Confidential, {B,C}

b.	TopSecret, {A,B}

c.	Secret, {A,B,C}

d.	TopSecret, {B,C}