My experience is that SAS Office Analytics and SAS Visual Analytics are separate product bundles and are licensed separately. They can of course be installed together if required if you go for SAS VA 7.5, the version of VA that runs on SAS 9.4. I'm fairly sure that SAS EBI is a deprecated product bundle that is no longer available, but it is analogous to SAS OA in most respects.
Please note that SAS VA 7.5 is the last version of VA available on SAS 9.4 and was released in 2019. SAS VA on Viya is now considerably ahead of VA 7.5 in terms of functionality and performance with updates being provided monthly. Viya and VA on Viya is a completely different architecture though and IMHO requires careful evaluation to understand this.