Task: Answer the MCQ question.
Question: Which drug has a 7.874\% 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 additional words.
Options:
a. CCOc1ccccc1NC(=S)NCC1CCCO1
b. COc1ccc(CNC(=O)c2ccc(N(C)S(=O)(=O)c3ccc(C)cc3)cc2)cc1
Answer: a. CCOc1ccccc1NC(=S)NCC1CCCO1
{#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#}
CCOc1ccccc1NC(=S)NCC1CCCO1
CCOc1ccccc1NC(=S)NCC1CCCO1
1-(2-ethoxyphenyl)-3-(oxolan-2-ylmethyl)thiourea