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) O=C(O)c1ccccc1-c1c2ccc(=O)cc-2oc2cc(O)ccc12
b) CN1CCC[C@H]1c1cccnc1
c) CN1CC[C@]23c4c5ccc(O)c4O[C@H]2C(=O)CC[C@H]3[C@H]1C5
d) CN(CC(N)=O)C(=O)N(CCCl)N=O
Answer: d
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-[[2-chloroethyl(nitroso)carbamoyl]-methylamino]acetamide