A Delay Discounting Curve for an Impulsive Individual with Time

A delay discounting curve for an impulsive individual with time on the x axis and subjective value on the y axis would be:

A) Initially low and near 0, but rising as it goes further into the future"
B) Initially high, but then with steep drop-off, with much of the tale end flat and near 0"
C) Starting out high, and then consistently rising and falling over time"
D) None of the above"