Which statement describes a difference between the IOS 15.0 extended maintenance release and a standard maintenance release?

Which statement describes a difference between the IOS 15.0 extended maintenance release and a standard maintenance release?

• They consist of two separate parallel trains.
• The extended maintenance release will deliver new IOS features as soon as they are available.
• The standard maintenance release enables faster IOS feature delivery than the extended maintenance release does.
• A new standard maintenance release will synchronize with the latest extended maintenance release before the extended is made available.

Exam with this question: CCNA 3 (v5.0.3 + v6.0) Chapter 9 Exam Answers