Which of the following is true about mobile optimized sites?

Q)  Which of the following is true about mobile optimized sites?
Ans:

Mobile websites should only focus on task-based functionality, i.e. be a stripped-down version of the desktop site.
Mobile-friendly experiences typically feature easy navigation, quick-to-load images, and streamlined text
Visitors to your mobile-optimized site will be at the same point in the purchase funnel as visitors to your desktop site.
You should build your app before your mobile site.