In Oracle Payroll Cloud, to enter payroll details (e.g., weekly payroll assignment) for a newly hired worker, the payroll user should navigate to Manage Payroll Relationship > Assignment Record (Option B). The Payroll Relationship defines the worker's payroll association, and the Assignment Record within it is where payroll-specific details, such as the weekly payroll definition, are assigned at the assignment level. Option A (Work Relationship Record) is for employment terms, not payroll specifics. Option C (Payroll Relationship Record) is too broad, as payroll details are managed at the assignment level within the relationship. Option D (Work Relationship > Assignment Record) is incorrect, as payroll details are managed under Payroll Relationship, not Work Relationship. Oracle documentation specifies this navigation for payroll setup.