Answer: The six goals in the Preamble of the U.S. Constitution are: 1) to form a more perfect union; 2) establish justice; 3) insure domestic tranquility; 4) provide for the common defense; 5) promote the general welfare; and 6) secure the blessings of liberty to ourselves and our posterity.
Whatisi the selection that you are speaking of here?
The correct answer is who because whom should be used as the direct object of a verb or preposition. Also you can try the trick where you replace the blank with he or she. if it makes sense then you use whom. If not then you use who.