Task: Answer the MCQ question.
Question: Which drug has a 0.174\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
(a) OCC[C@@H]1C[C@@H](O)[C@H](O)[C@]2(OCc3ccccc32)O1
(b) COc1cc([N+](=O)[O-])ccc1NC(=O)Nc1ccc2c(c1)OCCO2
(c) O=C(CCn1c(=O)oc2cc(Cl)ccc21)Nc1ccc(O)cc1
(d) COC(=O)c1[nH]c2cc(OC)ccc2c1NC(=O)c1nonc1C
Answer: b. COc1cc([N+](=O)[O-])ccc1NC(=O)Nc1ccc2c(c1)OCCO2
{#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#}
COc1cc([N+](=O)[O-])ccc1NC(=O)Nc1ccc2c(c1)OCCO2
COc1cc([N+](=O)[O-])ccc1NC(=O)Nc1ccc2c(c1)OCCO2
1-(2,3-dihydro-1,4-benzodioxin-6-yl)-3-(2-methoxy-4-nitrophenyl)urea