To satisfy constitutional requirements, how much money must the Secretary of Health and Human Services distribute for the dental education program this year?
$100 million, because the President may not unilaterally suspend the effect of a valid federal statute imposing a duty to spend appropriated monies
$50 million, because the President could reasonably determine that this program is not as important to the general welfare as other programs. 
$50 million, because as chief executive the President has the constitutional authority to control the actions of all of his subordinates by executive order. 
$90 million, because any more drastic cut for the program would be a denial of equal protection to beneficiaries of this program as compared to beneficiaries of other programs. 