Accept defaults for the script prompts. Once finished, click OK in the installer to finish.
Historically, Oracle Patch Sets were cumulative. 11.2.0.4 contains all bug fixes from 11.2.0.1, 11.2.0.2, and 11.2.0.3. For a long time, 11.2.0.4 was the "gold standard" for stability before the industry moved to Oracle 12c. Because it is a Patch Set and not a base release, Oracle restricts its download to paying customers with an active support identifier. oracle database 11g release 2 11.2 0.4 download