Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a 1.891% hERG inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a: O=C(O)CCC(=O)c1ccc2c(c1)OCCO2
b: CCCC[N+](CCCC)(CCCC)CCCC.Nc1ncnc2c1ncn2[C@@H]1O[C@H](COS(=O)(=O)[O-])[C@@H](O)[C@H]1O
c: COCCCNC(=O)c1c(NC(=O)c2ccccc2)n(Cc2ccccc2)c2nc3ccccc3nc12
d: Cc1noc(C)c1COC(=O)c1cc(F)c(F)cc1Cl
e: Cc1ccsc1C(=O)OCC(=O)NC1CCCC1
Answer: a. O=C(O)CCC(=O)c1ccc2c(c1)OCCO2
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(O)CCC(=O)c1ccc2c(c1)OCCO2
O=C(O)CCC(=O)c1ccc2c(c1)OCCO2
4-(2,3-dihydro-1,4-benzodioxin-6-yl)-4-oxobutanoic acid