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 uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a) CN1C(=O)NC(=O)C(C)(C2=CCCCC2)C1=O
b) CN1C(=O)NC(=O)C(C)(C2=CCCCC2)C1=O
c) CNCCCN1c2ccccc2CCc2ccccc21
d) CCC(CC)COC(C(=O)OCCN(C)C)(c1ccccc1)c1ccccc1
Answer: a
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}
5-(cyclohexen-1-yl)-1,5-dimethyl-1,3-diazinane-2,4,6-trione