Task: Answer the multiple-choice question.
Query: Which drug exhibits a 2.126\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
(a) Cc1ccc(NC(=S)NC(=O)CC2CC(C)(C)OC2=O)cc1
(b) Cn1nc(OCCOc2ccccc2)ccc1=O
(c) CCCc1nnc(NC(=O)CS(=O)(=O)c2ccc(C)cc2)s1
(d) O=C(NC1CCCC1)C(c1cccnc1)N(C(=O)c1ccco1)c1ccc(F)cc1
Answer: b. Cn1nc(OCCOc2ccccc2)ccc1=O
{#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#}
Cn1nc(OCCOc2ccccc2)ccc1=O
Cn1nc(OCCOc2ccccc2)ccc1=O
2-methyl-6-(2-phenoxyethoxy)pyridazin-3-one