Explanation
Hardware Model Normalization is a feature that enables users to standardize the data of hardware and consumable models, such as manufacturer, product, model, and device type. Hardware Model Normalization requires the activation of the Hardware Model Normalization (com.sn_hwnorm) plugin, which also activates the Normalization Data Services Client (com.glide.data_services_canonicalization.client) plugin. These plugins install several tables that store the normalized data and the rules for normalization. The tables that are installed with Hardware Model Normalization are:
Device Type: This table contains the device types that are used to categorize the hardware models, such as laptop, desktop, server, printer, etc.
Hardware Manufacturer: This table contains the normalized names of the hardware manufacturers, such as Dell, HP, Lenovo, etc.
Hardware Model Library: This table contains the normalized data of the hardware models, such as manufacturer, product, model, device type, UNSPSC code, etc. This table is populated by the Hardware Model Normalization Content Service, which is a subscription-based service that provides the latest and most accurate data for hardware models.
Hardware Normalize Key: This table contains the rules for generating the normalize key, which is a unique identifier for each hardware model based on its manufacturer, product, and model. The normalize key is used to match the hardware models with the Hardware Model Library data.
The other options, C. Hardware Normalize Key and E. Device Name, are not tables that are installed with Hardware Model Normalization. Hardware Normalize Key is a field in the Hardware Model [cmdb_model] table, not a separate table. Device Name is a field in the Configuration Item [cmdb_ci] table, not a separate table. References: Hardware Model Normalization, Demo - HAM Professional - Hardware Model Normalization, Hardware Asset Management

Explanation
To fully normalize a model, you need to add the model number to the model record, which is a unique identifier for the model based on the United Nations Standard Product and Services Code (UNSPSC). The model number helps to standardize the display name and remove duplicates in the model catalog and the CMDB. The other fields, such as version, owner, and manufacturer, are optional or can be derived from the model number. References:
Hardware Model Normalization, which explains how to normalize the details of the hardware and consumable models using the Hardware Model Normalization Content Service.
Hardware Asset Management overview, which describes the functionalities of the Hardware Asset Management application, including the model normalization feature.
[Hardware Asset Management - Customer Success], which provides a success map that outlines the processes and best practices for implementing, running, and optimizing the Hardware Asset Management applications, based on the Capability Blueprint framework.