Task: Answer the multiple-choice question.
Query: Which compound exhibits a 18.045\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: O=C(O)c1c(Cl)nc2ccccn12
b: CC(C)CC(C(=O)NCC1CCCO1)N(C(=O)Cn1nnc(-c2ccc(F)cc2)n1)c1ccccc1F
c: Cn1c(-c2csc(-c3cccc(C(F)(F)F)c3)n2)n[nH]c1=S
d: COc1ccc(NC(=O)COC(=O)c2ccc(OCc3ccc(Cl)cc3Cl)c(OC)c2)c(OC)c1
Answer: a. O=C(O)c1c(Cl)nc2ccccn12
{#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#}
O=C(O)c1c(Cl)nc2ccccn12
O=C(O)c1c(Cl)nc2ccccn12
2-chloroimidazo[1,2-a]pyridine-3-carboxylicacid