In Biba Integrity Model, how is $"$ Integrity confinement" defined?

Question $5$ options:

A subject can read an object only if the integrity level

of the subject is dominated by the integrity level of the object

A subject can invoke another subject only if the integrity level of the first subject dominates the integrity level of the second subject

A subject can modify an object only if the integrity level of the subject dominates the integrity level of the object

A subject can delete an object only if the integrity level of the subject dominates the integrity level of the object