Task: Please answer the multiple choice question.
Question: Which molecule has the longest half life time in humans after IV administration?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
a: Cc1ccnc2c1NC(=O)c1cccnc1N2C1CC1
b: CCOC(=O)C1(c2ccccc2)CCC=CC1N(C)C
c: Cc1cc(=O)n(-c2ccccc2)n1C
d: CN(C(=O)c1c(O)c2ccccc2n(C)c1=O)c1ccccc1
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}
ethyl 2-(dimethylamino)-1-phenylcyclohex-3-ene-1-carboxylate