Task: Please answer the multiple choice question.
Question: Which molecule has the longest drug 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 other words.
Options:
a: CCC(=O)C1(c2cccc(O)c2)CCN(C)CC1
b: CCC1(c2ccccc2)C(=O)NC(=O)NC1=O
c: CO/N=C(\C(=O)N[C@@H]1C(=O)N2C(C(=O)O)=CCS[C@H]12)c1csc(N)n1
d: CN1CCCC(n2nc(Cc3ccc(Cl)cc3)c3ccccc3c2=O)CC1
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}
5-ethyl-5-phenyl-1,3-diazinane-2,4,6-trione