Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 5.014\% 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] COC(=O)c1c(-c2snnc2C)n[nH]c1C
[b] CCc1nc2sc3c(c2c(=O)n1NC(=O)CCl)CCCC3
Answer: a. COC(=O)c1c(-c2snnc2C)n[nH]c1C
{#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#}
COC(=O)c1c(-c2snnc2C)n[nH]c1C
COC(=O)c1c(-c2snnc2C)n[nH]c1C
methyl 5-methyl-3-(4-methylthiadiazol-5-yl)-1H-pyrazole-4-carboxylate