Task: Answer the multiple-choice question.
Question: Which drug has a 18.715\% 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 other words.
Options:
a COc1ccc(NC(=O)CC(C)C)c([N+](=O)[O-])c1
b CNC(=O)C(=O)Nc1c(C)cc(C)cc1C
c CCN(CC)CCNC(=O)C1CCC(=O)N1CCc1ccccc1
d N#Cc1c(N)nc2c(c1-c1ccccc1)CCCC2
Answer: b. CNC(=O)C(=O)Nc1c(C)cc(C)cc1C
{#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#}
N-methyl-N'-(2,4,6-trimethylphenyl)oxamide