Which one of the following statements is true?

The Bell-LaPadula model assumes that discretionary access control is assured.

Pipelining is an example of a covert channel.

From a security point of view, creating software using an object code language is less desirable than using a programmed I/O language.

Content-dependent control makes integrity decisions based on the object's data.

The Simple Security Property and the * Security Property implement mandatory access control.