Task: Answer the MCQ question.
Query: Which drug exhibits a 12.255\% 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 other words.
Options:
a. COc1ccc(CNC(=O)C2CCCN(S(=O)(=O)c3ccc4c(c3)CCCN4C(C)=O)C2)cc1
b. OCCC1CN(Cc2cccs2)CCN1Cc1ccccc1
c. CCC(=O)Nc1ccc(NC(=O)c2cccc(OC)c2)nc1
d. O=C(O)c1cc(Cl)c(Cl)cc1C(=O)NCc1ccco1
e. CCOC(=O)/C(C#N)=C/c1c[nH]c2ccccc12
Answer: b. OCCC1CN(Cc2cccs2)CCN1Cc1ccccc1
{#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#}
OCCC1CN(Cc2cccs2)CCN1Cc1ccccc1
OCCC1CN(Cc2cccs2)CCN1Cc1ccccc1
2-[1-benzyl-4-(thiophen-2-ylmethyl)piperazin-2-yl]ethanol