Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 2.667\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a: O=C(NCCCN1CCN(CCCNC(=O)c2cc([N+](=O)[O-])ccc2Cl)CC1)c1cc([N+](=O)[O-])ccc1Cl
b: COc1ccc(CNC(=O)CCN2C(=O)c3ccccc3S2(=O)=O)cc1
c: COC(=O)c1ccccc1NC(=O)Nc1cccnc1
d: COCCC(=O)Nc1ccc2c(c1)CN(C(=O)CCSC)CC2
e: CC(C)(C)NS(=O)(=O)c1cc(C(=O)Nc2sccc2C#N)ccc1Cl
Answer: a. O=C(NCCCN1CCN(CCCNC(=O)c2cc([N+](=O)[O-])ccc2Cl)CC1)c1cc([N+](=O)[O-])ccc1Cl
{#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#}
O=C(NCCCN1CCN(CCCNC(=O)c2cc([N+](=O)[O-])ccc2Cl)CC1)c1cc([N+](=O)[O-])ccc1Cl
O=C(NCCCN1CCN(CCCNC(=O)c2cc([N+](=O)[O-])ccc2Cl)CC1)c1cc([N+](=O)[O-])ccc1Cl
2-chloro-N-[3-[4-[3-[(2-chloro-5-nitrobenzoyl)amino]propyl]piperazin-1-yl]propyl]-5-nitrobenzamide