Which prerequisite is mandatory for an implicit deployment of the SAP HANA view onto the database?

The correct answer is based on the specific requirement for the implicit deployment of an SAP HANA view onto the database. When considering the scenario, the condition that package ZHA400_00 is listed in table SNHI_DUP_PREWORK indicates that this package is recognized and prepared for deployment processes concerning the view in question.

This is important because implicit deployment of a view requires certain prerequisites that ensure the environment is set up correctly for the view to function properly. When a package is listed in the SNHI_DUP_PREWORK table, it signals that any necessary pre-processing or pre-deployment tasks have been addressed, ensuring a smooth deployment process. The existence of this entry functions as a confirmation that the relevant setup is in place for the view's deployment.

In contrast, the other options revolve around specific deployment modes or configurations of the systems, which, while possibly relevant to some extent, do not serve as the mandatory condition for implicit deployment as stated in the question. For instance, deployment mode A or B pertains to how the view is intended to be treated during deployment but does not specifically address the readiness of the package itself for deployment. Similarly, the reference to a system not being SAP HANA as the primary database does not directly relate to the prerequisites for implicit deployment