The correct answer is B. The National Flood Insurance Program is designed principally to insure eligible buildings and personal property against direct physical loss by or from flood. The Standard Flood Insurance Policy does not function as broad consequential-loss insurance. Federal policy language expressly distinguishes direct physical flood damage from indirect economic consequences such as loss of use, lost revenue, lost profits, business interruption, and additional living expenses. Therefore, option A and option C do not describe the fundamental NFIP coverage grant.
Option D is also incorrect as a general statement. Sewer or drain backup is not independently treated as a covered flood merely because water enters through a sewer or drain; coverage depends on whether the backup is directly caused by an insured flood meeting the federal policy definition and conditions.
Option B uses simplified exam wording. Technically, NFIP does not cover literally every direct loss without limitation; coverage remains subject to insured-property requirements, exclusions, limits, and deductibles. Nevertheless, B accurately states the intended coverage principle. The official Series 17-70 outline specifically includes National Flood Insurance Program—eligibility, coverage, flood definition, limits, deductibles, proof of loss, and policy forms.