Which statement is true regarding the Junos OS?（）

• A、Each process runs in its own protected memory space ensuring that one process cannot directly interfere with another.
• B、Processes share memory space but use separate ASICs so that one process cannot directly interfere with another.
• C、A central processor called the IP2 Chip dynamically assigns memory as process needs fluctuate.
• D、The memory management daemon (mmd) is responsible for allocating new memory for processes as they request it.