Task: Answer the multiple choice question.
Question: Which drug exhibits a -8.687% 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) OCc1cnc(SCc2ccccc2)n1Cc1ccccc1
(b) C=CCn1c(O)c(N=O)c2cc(C)ccc21
(c) CCCCCCSc1ncc(C#N)c(N)n1
(d) Brc1ccc(CSc2nnc(Cc3c[nH]c4ccccc34)o2)cc1
Answer: b. C=CCn1c(O)c(N=O)c2cc(C)ccc21
{#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=CCn1c(O)c(N=O)c2cc(C)ccc21
C=CCn1c(O)c(N=O)c2cc(C)ccc21
5-methyl-3-nitroso-1-prop-2-enylindol-2-ol