Task: Answer the multiple choice question.
Question: Which drug exhibits a -3.032\% 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) COc1cnc(-c2ccccc2)[nH]c1=O
(b) CC(C)NC(=O)C1CCN(S(=O)(=O)c2ccc(N3CCCC3=O)cc2)CC1
(c) CCOC(=O)Cn1nc(/C=C/c2ccccc2)ccc1=O
(d) Cc1cc(C)nc(Sc2nc(Cl)nc(N(c3ccccc3)c3ccccc3)n2)n1
Answer: a. COc1cnc(-c2ccccc2)[nH]c1=O
{#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#}
COc1cnc(-c2ccccc2)[nH]c1=O
COc1cnc(-c2ccccc2)[nH]c1=O
5-methoxy-2-phenyl-1H-pyrimidin-6-one