Task: Answer the multiple-choice question.
Question: Which drug has a -4.041% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] CCCn1c(N)c(C(c2ccc(OC)cc2)N2CCN(c3ccccc3)CC2)c(=O)[nH]c1=O
[b] O=C(c1ccc2nc[nH]c2c1)N1CCc2ccccc2C1
[c] Cc1cc(C)c(C(=O)CC2(O)C(=O)Nc3ccccc32)cc1C
[d] C1CCN(c2nc3nonc3nc2N2CCCCC2)CC1
Answer: d. C1CCN(c2nc3nonc3nc2N2CCCCC2)CC1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
C1CCN(c2nc3nonc3nc2N2CCCCC2)CC1
C1CCN(c2nc3nonc3nc2N2CCCCC2)CC1
5,6-di(piperidin-1-yl)-[1,2,5]oxadiazolo[3,4-b]pyrazine