Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 9.174\% 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) O=C(NNC(=O)c1cc(OCC(F)(F)F)ccc1OCC(F)(F)F)c1ccc(Cl)c(Cl)c1
b) O=C(O)c1ccc(S(=O)(=O)N2CCCCCC2)cc1
c) CCOC(=O)C(C(=O)OCC)C(C)(C)/C(C)=N\Nc1ccc([N+](=O)[O-])cc1[N+](=O)[O-]
d) CCn1c2c(c3cc(Cl)ccc31)CCCC2=O
Answer: d. CCn1c2c(c3cc(Cl)ccc31)CCCC2=O
{#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#}
6-chloro-9-ethyl-3,4-dihydro-2H-carbazol-1-one