the answer choices are

net assets

net income

non gaap measures are a required component of the MD& A section

non gaap measures may be explained in the notes to finanical statement

non gaap measures must be explained in the notes to financial statement

the reporting affirms the computation of a measure widely and consistently used across companies

the reporting of non gaap measure is a required industry practice

total asset

core operating earnings, core operating margin core earnings per share

disclosure is not based on a gaap standards

earning from operations

voluntary decision made by managment

Non-GAAP Measures: Core Operating Earnings, Core Operating Margin, and Core Earnings Per Share Our Consolidated Financial Statements are prepared in accordance with Generally Accepted Accounting Principles in the United States of America (GAAP), which we supplement with certain non-GAAP financial information. These non-GAAP measures should not be considered in isolation or as a substitute for the related GAAP measures, and other companies may define such measures differently ... Core operating earnings, core operating margin and core earnings per share exclude the impact of certain pension and other postretirement benefit expenses that are not allocated to business segments ... Management uses core operating earnings, core operating margin and core earnings per share for purposes of evaluating and forecasting underlying business performance. Management believes these core earnings measures provide investors additional insights into operational performance as unallocated pension and other postretirement benefit cost primarily represent costs driven by market factors and costs not allocable to U.S. government contracts