Task: Answer the multiple-choice question.
Query: Which drug exhibits a 0.504\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] Cc1cc(C)c(C)c(OCCNCc2ccccc2)c1.O=C(O)C(=O)O
[b] CCCCCCCOC(=O)c1nc(Cl)c(Cl)c(N)c1Cl
[c] CCCN(CC(=O)Nc1ccccc1OC)C(=O)c1ccc2ncsc2c1
[d] CCN(C(=S)Nc1ccc(Oc2ccccc2)cc1)c1ccccc1
Answer: b. CCCCCCCOC(=O)c1nc(Cl)c(Cl)c(N)c1Cl
{#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#}
CCCCCCCOC(=O)c1nc(Cl)c(Cl)c(N)c1Cl
CCCCCCCOC(=O)c1nc(Cl)c(Cl)c(N)c1Cl
heptyl 4-amino-3,5,6-trichloropyridine-2-carboxylate