Task: Answer the multiple choice question.
Question: Which drug exhibits a 1.909\% 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, b, or c without using any other words.
Options:
a: O=C(CSc1nnc(NC2CCCCC2)s1)NC1CCS(=O)(=O)C1
b: C=CCc1cccc2cc(C(=O)NC3CCCC3)c(=O)oc12
c: CCN(CC)S(=O)(=O)c1cc(F)ccc1OC
Answer: a. O=C(CSc1nnc(NC2CCCCC2)s1)NC1CCS(=O)(=O)C1
{#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#}
2-[[5-(cyclohexylamino)-1,3,4-thiadiazol-2-yl]sulfanyl]-N-(1,1-dioxothiolan-3-yl)acetamide