According to the ServiceNow documentation1, the cost_plan_breakdown table stores the cost information for a specific fiscal period. This table contains the fields such as cost plan, fiscal period, amount, and currency.
The other options are incorrect because:
B: pm_project: The pm_project table stores the information about projects, such as name, description, state, and status2.
C: cost_plan: The cost_plan table stores the information about cost plans, such as name, type, and project3.
D: expense_line: The expense_line table stores the information about expense lines, such as expense type, amount, and date4.
1:
https://docs.servicenow.com/bundle/vancouver-it-business-management/page/product/project-management/refer
https://docs.servicenow.com/bundle/vancouver-it-business-management/page/product/project-management/refer
https://docs.servicenow.com/bundle/vancouver-it-business-management/page/product/project-management/refer
https://docs.servicenow.com/bundle/vancouver-it-business-management/page/product/project-management/refer