Answer:
B. the amount by which government purchases and transfers exceed tax revenues.
Step-by-step explanation:
Primary deficit is the borrowing requirements of government excluding interest. It is the addition of government purchases and transfers less tax revenues. It is the amount by which spending exceeds money received in form of revenues.
Mathematically
Primary Deficit = Government purchases + transfers - tax revenues.
Primary deficits is different from deficits as net interest isn't added.