Task: Answer the MCQ question.
Query: Which drug has a 18.006\% 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 or b without using any other words.
Options:
[a] c1ccc([C@@H]2CO2)cc1
[b] O=C(Nc1ccc2nc3n(c(=O)c2c1)CCCCC3)C(=O)N1CCN(c2ccccc2F)CC1
Answer: a. c1ccc([C@@H]2CO2)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#}
c1ccc([C@@H]2CO2)cc1
c1ccc([C@@H]2CO2)cc1
(2R)-2-phenyloxirane