Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a -2.334\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: CN(CC(=O)N1CCN(c2cccc(Cl)c2)CC1)S(=O)(=O)c1cnc[nH]1
b: CCOC(=O)N1CCN(C(=O)C2CC(=O)N(c3ccccc3)C2)CC1
c: O=C(c1ccccc1Oc1nnnn1-c1ccccc1)N1CCOCC1
Answer: a. CN(CC(=O)N1CCN(c2cccc(Cl)c2)CC1)S(=O)(=O)c1cnc[nH]1
{#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#}
CN(CC(=O)N1CCN(c2cccc(Cl)c2)CC1)S(=O)(=O)c1cnc[nH]1
CN(CC(=O)N1CCN(c2cccc(Cl)c2)CC1)S(=O)(=O)c1cnc[nH]1
N-[2-[4-(3-chlorophenyl)piperazin-1-yl]-2-oxoethyl]-N-methyl-1H-imidazole-5-sulfonamide