Task: Answer the MCQ question.
Question: Which compound exhibits a 6.916\% 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] c1csc(-c2nc3ccccc3s2)c1
[b] c1ccc2sc(SN3CCOCC3)nc2c1
[c] O=C(O)c1ccccc1Sc1ncnc2sccc12
[d] Cn1c(=O)[nH]c2cc(Cl)cnc21
Answer: d. Cn1c(=O)[nH]c2cc(Cl)cnc21
{#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#}
Cn1c(=O)[nH]c2cc(Cl)cnc21
Cn1c(=O)[nH]c2cc(Cl)cnc21
6-chloro-3-methyl-1H-imidazo[4,5-b]pyridin-2-one