Task: Answer the MCQ question.
Query: Which compound exhibits a 2.642\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] Cc1cccc(OCCCN2C(=O)C(=O)c3cc(C)ccc32)c1
[b] COc1ccc(Cc2nnc(N/N=C/c3ccc(O)cc3O)[nH]c2=O)cc1OC
[c] Cc1cc(=O)[nH]c2ccc(S(=O)(=O)Nc3ccc(O)cc3)cc12
[d] O=C(Nc1ccccc1Cl)c1ccc(=O)[nH]n1
Answer: b. COc1ccc(Cc2nnc(N/N=C/c3ccc(O)cc3O)[nH]c2=O)cc1OC
{#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#}
COc1ccc(Cc2nnc(N/N=C/c3ccc(O)cc3O)[nH]c2=O)cc1OC
COc1ccc(Cc2nnc(N/N=C/c3ccc(O)cc3O)[nH]c2=O)cc1OC
3-[(2E)-2-[(2,4-dihydroxyphenyl)methylidene]hydrazinyl]-6-[(3,4-dimethoxyphenyl)methyl]-4H-1,2,4-triazin-5-one