- analyze and characterize your critical path: number of resources, bytes, length.
- optimize the number of critical bytes to reduce the download time (number of roundtrips)
- minimize number of critical resources: eliminate them, defer their download, mark them as async, and so on
- optimize the order in which the remaining critical resources are loaded: download all critical assets as early as possible to shorten the critical path length.
The correct answer for the above question is:
Here you can read the explanation