Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a 4.917\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a. S=c1[nH]nc(C2CCCCC2)o1
b. O=C(c1ccc2c(c1)C(=O)N(c1ccc(Cl)cc1)C2=O)N1CCN(c2ccccn2)CC1
c. O=C(CCCc1ccccc1)NCCN1CCOCC1
Answer: a. S=c1[nH]nc(C2CCCCC2)o1
{#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#}
S=c1[nH]nc(C2CCCCC2)o1
S=c1[nH]nc(C2CCCCC2)o1
5-cyclohexyl-3H-1,3,4-oxadiazole-2-thione