Task: Answer the MCQ question.
Question: Which drug has a 9.888% 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 other words.
Options:
a CCC(c1nnnn1Cc1cccs1)N1CCN(C2CCCC2)CC1.Cl
b O=C1/C(=C/c2cccc([N+](=O)[O-])c2)CSc2ccc(Cl)cc21
c Cc1nn(-c2ccc(F)cc2)c2nc(N)c(C#N)c(-c3ccc(O)c(O)c3)c12
d COc1cc2cc(CCCOC(=O)c3ccc4c(c3)OCO4)oc(=O)c2cc1OC
Answer: b. O=C1/C(=C/c2cccc([N+](=O)[O-])c2)CSc2ccc(Cl)cc21
{#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=C1/C(=C/c2cccc([N+](=O)[O-])c2)CSc2ccc(Cl)cc21
O=C1/C(=C/c2cccc([N+](=O)[O-])c2)CSc2ccc(Cl)cc21
(3Z)-6-chloro-3-[(3-nitrophenyl)methylidene]thiochromen-4-one