Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 1.933% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a CC1CCCCC1NC(=O)C1CCN(S(=O)(=O)c2cccc3nsnc23)CC1
b O=C(CCNC(=O)c1ccc([N+](=O)[O-])cc1)Nc1nccs1
c CCc1cccc(C)c1NC(=O)c1cc(C)oc1C
d CC(=O)N1CCc2cc(Br)cc(S(=O)(=O)CCC(=O)Nc3c(C)n(C)n(-c4ccccc4)c3=O)c21
Answer: b. O=C(CCNC(=O)c1ccc([N+](=O)[O-])cc1)Nc1nccs1
{#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(CCNC(=O)c1ccc([N+](=O)[O-])cc1)Nc1nccs1
O=C(CCNC(=O)c1ccc([N+](=O)[O-])cc1)Nc1nccs1
oxido-oxo-[4-[[3-oxo-3-(1,3-thiazol-2-ylamino)propyl]carbamoyl]phenyl]azanium