Task: Answer the MCQ question.
Query: Which compound exhibits a 15.073\% human ether-à-go-go related gene (hERG) inhibition at 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(c2ccccc2)CN1
b) CC(=O)Nc1ccc(NC(=O)C2CC(=O)N(C(C)C)C2)cc1
c) COc1cccc(N2CC(NS(=O)(=O)c3cccnc3)CC2=O)c1
d) O=C(NCCCN1CCOCC1)c1ccc(Cl)cc1[N+](=O)[O-]
Answer: a. O=C1CC(c2ccccc2)CN1
{#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=C1CC(c2ccccc2)CN1
O=C1CC(c2ccccc2)CN1
4-phenylpyrrolidin-2-one