Task: Answer the MCQ question.
Query: Which compound exhibits a 2.303\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CC(NC(=O)c1cc2ccccc2o1)c1cccs1
(b) CCCCCn1c(CCC(=O)Oc2ccccc2OC)nc2c1c(=O)[nH]c(=O)n2CCCC
Answer: b. CCCCCn1c(CCC(=O)Oc2ccccc2OC)nc2c1c(=O)[nH]c(=O)n2CCCC
{#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#}
CCCCCn1c(CCC(=O)Oc2ccccc2OC)nc2c1c(=O)[nH]c(=O)n2CCCC
CCCCCn1c(CCC(=O)Oc2ccccc2OC)nc2c1c(=O)[nH]c(=O)n2CCCC
(2-methoxyphenyl) 3-(3-butyl-2,6-dioxo-7-pentylpurin-8-yl)propanoate