Task: Answer the MCQ question.
Query: Which drug exhibits a -0.691\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a O=C1C=C(c2cccc(Cl)c2O)C[C@@H](c2ccc(Cl)cc2)C1
b O=C(NN1CCOCC1)c1cc(-c2ccc(Br)cc2)nc2ccccc12
c Cc1ccccc1CNC(=O)CN1C(=O)c2ccccc2S1(=O)=O
Answer: a. O=C1C=C(c2cccc(Cl)c2O)C[C@@H](c2ccc(Cl)cc2)C1
{#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=C1C=C(c2cccc(Cl)c2O)C[C@@H](c2ccc(Cl)cc2)C1
O=C1C=C(c2cccc(Cl)c2O)C[C@@H](c2ccc(Cl)cc2)C1
(5R)-3-(3-chloro-2-hydroxyphenyl)-5-(4-chlorophenyl)cyclohex-2-en-1-one