Task: Answer the multiple-choice question.
Question: Which drug exhibits a -2.939\% human ether-à-go-go related gene (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: O=c1cc(CSc2nnc(COc3ccc(Cl)cc3)o2)c2ccccc2[nH]1
b: C/C(=N\NC(=O)COc1cc(C)cc(C)c1)c1ccc(N2CCOCC2)cc1
c: CCCOc1ccc(OCCNC2CCCC2)cc1
d: CCC(C)NC(=O)C1CCN(S(=O)(=O)c2cccc3cccnc23)CC1
Answer: c. CCCOc1ccc(OCCNC2CCCC2)cc1
{#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#}
CCCOc1ccc(OCCNC2CCCC2)cc1
CCCOc1ccc(OCCNC2CCCC2)cc1
[C][C][C][O][C][=C][C][=C][Branch1][N][O][C][C][N][C][C][C][C][C][Ring1][Branch1][C][=C][Ring1][#C]
N-[2-(4-propoxyphenoxy)ethyl]cyclopentanamine