The phrase "federal fiscal year" refers to which of the following? a. the regular calendar year: january until december b. the time from which the president approves the budget until october 1st when the budget goes into effect c. the time from when the president submits the budget (february) until the budget goes into effect (october) d. the year according to when the budget comes into effect (october 1st) and a new budget begins (the following october 1st)