Task: Answer the multiple choice question.
Query: Which compound exhibits a 1.908\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a CCn1c(=O)c(=O)[nH]c2cc(C(=O)NC3CCCC3)ccc21
b CC(C)(C)CC(=O)O/N=C(\N)c1ccccn1
c O=C(Cn1c(-c2ccccn2)nc2ccccc21)N/N=C/c1cccnc1
Answer: c. O=C(Cn1c(-c2ccccn2)nc2ccccc21)N/N=C/c1cccnc1
{#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(Cn1c(-c2ccccn2)nc2ccccc21)N/N=C/c1cccnc1
O=C(Cn1c(-c2ccccn2)nc2ccccc21)N/N=C/c1cccnc1
N-[(E)-pyridin-3-ylmethylideneamino]-2-(2-pyridin-2-ylbenzimidazol-1-yl)acetamide