Task: Please answer the multiple choice question.
Question: Which molecule has the longest half life in humans after IV administration?
Constraint: Even if you are not sure, you must pick either a, b, or c without using any additional words.
Options:
a CN1C(=O)CN=C(c2ccccc2F)c2cc([N+](=O)[O-])ccc21
b OCCN1CCN(CCCN2c3ccccc3Sc3ccc(Cl)cc32)CC1
c O=C1Nc2ccc(Cl)cc2C(c2ccccc2)=NC1O
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecule has the longest {half_life_duration__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%half_life_duration%}
Answer: {%multiple_choice_result}
2-[4-[3-(2-chlorophenothiazin-10-yl)propyl]piperazin-1-yl]ethanol