Task: Answer the multiple choice question.
Query: Which drug exhibits a 18.659\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a CCOC(=O)c1sc(N)c(C(N)=O)c1C
b C=CCSC1=C(C#N)C(c2cc(Br)c(O)c(OC)c2)CC(=O)N1
c CCC(=O)N1CCc2cc(S(=O)(=O)NCCC(=O)N3CCN(c4ccccc4)CC3)ccc21
Answer: c. CCC(=O)N1CCc2cc(S(=O)(=O)NCCC(=O)N3CCN(c4ccccc4)CC3)ccc21
{#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#}
CCC(=O)N1CCc2cc(S(=O)(=O)NCCC(=O)N3CCN(c4ccccc4)CC3)ccc21
CCC(=O)N1CCc2cc(S(=O)(=O)NCCC(=O)N3CCN(c4ccccc4)CC3)ccc21
N-[3-oxo-3-(4-phenylpiperazin-1-yl)propyl]-1-propanoyl-2,3-dihydroindole-5-sulfonamide