Deciding Not to Buy Any Junk Food at the Grocery

Deciding not to buy any junk food at the grocery store while shopping for the week is:

A) an example of removing temptation in an effort to match present-oriented decisions more closely to future-oriented ones.
B) an example of how individuals may compensate for the time inconsistency of their actions.
C) an example of a tool people can use in order to enact the actions they say they want to make, but have a hard time making.
D) All of these are true.