Task: Answer the MCQ question.
Query: Which drug exhibits a 9.694% 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: COc1ccc(NS(=O)(=O)c2ccc(OC)c3ccccc23)cn1
b: C=CCNc1ncnc2c1[nH]c1ccccc12
c: CCN(CC)C(=O)CN(C#N)c1nc(OC)nc(N(C)C)n1
d: Nc1nc(-c2ccc(Cl)cc2)c(S(=O)(=O)c2ccccc2)s1
Answer: b. C=CCNc1ncnc2c1[nH]c1ccccc12
{#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#}
C=CCNc1ncnc2c1[nH]c1ccccc12
C=CCNc1ncnc2c1[nH]c1ccccc12
N-prop-2-enyl-5H-pyrimido[5,4-b]indol-4-amine