Task: Answer the MCQ question.
Question: Which compound exhibits a 13.393\% 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) CC1CCC(NC(=S)NCCN(C)C)CC1
(b) CCn1cc(C(=O)O)c(=O)c2cnc(N3CCN(C(=S)NC(=O)c4ccc(Br)cc4)CC3)nc21
Answer: a. CC1CCC(NC(=S)NCCN(C)C)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#}
CC1CCC(NC(=S)NCCN(C)C)CC1
CC1CCC(NC(=S)NCCN(C)C)CC1
1-[2-(dimethylamino)ethyl]-3-(4-methylcyclohexyl)thiourea