Task: Answer the multiple-choice question.
Query: Which drug has a 4.263\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] CC(C)CN1CCN(Cc2ccc3ncccc3c2)CC1CCO
[b] N#C/C(=C\c1cc([N+](=O)[O-])c(N2CCCCC2)cc1N1CCCCC1)c1nn(-c2ccccc2)c(N)c1C#N
[c] O=C(CCc1cnccn1)NC1CCCc2c1cnn2-c1ccc(F)cc1F
[d] COCCCNC(=S)N(CCO)Cc1cc2cc3c(cc2[nH]c1=O)OCO3
Answer: a. CC(C)CN1CCN(Cc2ccc3ncccc3c2)CC1CCO
{#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#}
CC(C)CN1CCN(Cc2ccc3ncccc3c2)CC1CCO
CC(C)CN1CCN(Cc2ccc3ncccc3c2)CC1CCO
2-[1-(2-methylpropyl)-4-(quinolin-6-ylmethyl)piperazin-2-yl]ethanol