Consider the following Snowpark Python code snippet for creating a stored procedure:

What is the PRIMARY reason for explicitly defining 'input_types' and during the stored procedure registration?
Correct Answer: C
The primary reason for explicitly defining and 'return_type' during stored procedure registration is to enforce data type safety and schema validation. Snowflake uses these definitions to verify that the data passed to the stored procedure and the data returned by the stored procedure conform to the expected types. This helps prevent unexpected runtime errors that can occur due to type mismatches between the stored procedure's code and the calling environment. Without explicit type definitions, Snowpark would rely on runtime inference, which can be less reliable and harder to debug in production scenarios.