Task: Answer the multiple choice question.
Query: Which drug exhibits a 14.728\% human ether-à-go-go related gene (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 CCC(=O)n1nc(-c2cccnc2)nc1NCc1ccc(OC)cc1
b O=C(COC(=O)c1n[nH]c(=O)c2ccccc12)c1ccc(Cl)cc1
c Cc1cc(C)c(C#N)c(SCC(=O)Nc2ccc3c(c2)OCO3)n1
d CC(NC(=O)C12CC3CC(C)(CC(C)(C3)C1)C2)c1ccncc1
Answer: b. O=C(COC(=O)c1n[nH]c(=O)c2ccccc12)c1ccc(Cl)cc1
{#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#}
O=C(COC(=O)c1n[nH]c(=O)c2ccccc12)c1ccc(Cl)cc1
O=C(COC(=O)c1n[nH]c(=O)c2ccccc12)c1ccc(Cl)cc1
[2-(4-chlorophenyl)-2-oxoethyl]4-oxo-3H-phthalazine-1-carboxylate