Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a -0.431\% 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 other words.
Options:
a: CN1CCN(C(=O)Cc2nc3ccccc3[nH]2)CC1
b: COc1ccc(/C=C2\N=C3CCCCCN3C2=O)cc1
c: S=C(NCC1CCCO1)Nc1ccc(Cl)c(Cl)c1
d: CC1C(c2ccccc2)N(C)CCC12NC(=O)NC2=O
Answer: a. CN1CCN(C(=O)Cc2nc3ccccc3[nH]2)CC1
{#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#}
CN1CCN(C(=O)Cc2nc3ccccc3[nH]2)CC1
CN1CCN(C(=O)Cc2nc3ccccc3[nH]2)CC1
2-(1H-benzimidazol-2-yl)-1-(4-methylpiperazin-1-yl)ethanone