Problem statement: Answer the multiple-choice question.
Query: Which compound has a -69.852\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCCCCCN1C=CC=C/C1=C\C=C(C#N)C#N
b: Cc1cc(=O)oc(C)c1C(=O)N1CCCc2ccccc21
Answer: a. CCCCCCN1C=CC=C/C1=C\C=C(C#N)C#N
{#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#}
2-[(2E)-2-(1-hexylpyridin-2-ylidene)ethylidene]propanedinitrile