You have an Azure Cosmos DB for NoSQL account that contains a database named DB1 and a container named Container1. You need to manage the account by using the Azure Cosmos DB SDK. What should you do?

Creating a container is a valid SDK operation, but the question asks for 'what should you do' and creating a UDF is also a valid management action.

Listing physical partitions is typically an advanced operational detail and not a primary or common management operation exposed directly via the client SDK for general application development.

Reading a stored procedure is a valid SDK operation, but creating a UDF (D) is also a valid management operation involving the creation of server-side logic.

Creating a User Defined Function (UDF) is a programmatic operation that can be performed using the Azure Cosmos DB SDK for NoSQL. UDFs are server-side scripts stored within a container to extend query language capabilities, making their creation a valid management task via the SDK.