Task: Answer the MCQ question.
Query: Which drug exhibits a -10.071\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
[a] Cl.OCCNc1nc2ccccc2n1CCN1CCCCC1
[b] O=C(NC1CCN(Cc2ccccc2)CC1)c1ccc(Cl)cc1Cl
[c] COc1ccc(-n2c(C)cc(C(=O)COC(=O)Cn3cnc4ccccc43)c2C)cc1
[d] COc1ccc(/C(C)=N/OC/C(O)=C(\C#N)c2nc3ccccc3[nH]2)c(OC)c1
[e] O=C1N(c2ccccc2C(F)(F)F)O[C@]1(c1ccccc1)C1CCCC1
Answer: a. Cl.OCCNc1nc2ccccc2n1CCN1CCCCC1
{#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#}
Cl.OCCNc1nc2ccccc2n1CCN1CCCCC1
Cl.OCCNc1nc2ccccc2n1CCN1CCCCC1
2-[[1-(2-piperidin-1-ylethyl)benzimidazol-2-yl]amino]ethanol;hydrochloride