Task: Answer the multiple choice question.
Query: Which drug has a 1.498\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) COc1cccc(NC(=O)NC2CCN(CC(=O)Nc3ccccc3[N+](=O)[O-])CC2)c1
(b) O=C(O)CCn1c(-c2ccccc2)cc2ccccc21
(c) CCC(C)[C@H](NC(=O)Nc1ccc2c(c1)OCCO2)C(=O)O
Answer: b. O=C(O)CCn1c(-c2ccccc2)cc2ccccc21
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__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_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(O)CCn1c(-c2ccccc2)cc2ccccc21
O=C(O)CCn1c(-c2ccccc2)cc2ccccc21
3-(2-phenylindol-1-yl)propanoicacid