Task: Answer the MCQ question.
Question: Which drug exhibits a 11.042\% 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 additional words.
Options:
a: COc1ccc(CNC(=O)c2sccc2-c2ccccc2)cc1OC
b: O=C(O)c1cnc(-c2ccccc2)nc1Sc1ccccc1
c: O=C(Cn1c2[n+](c3ccc(C(F)(F)F)cc31)CCCCC2)Nc1ccc(Br)cc1.[Cl-]
d: COc1cc2cc(CCOC(=O)c3ccc(C#N)cc3)oc(=O)c2cc1OC
Answer: a. COc1ccc(CNC(=O)c2sccc2-c2ccccc2)cc1OC
{#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#}
COc1ccc(CNC(=O)c2sccc2-c2ccccc2)cc1OC
COc1ccc(CNC(=O)c2sccc2-c2ccccc2)cc1OC
N-[(3,4-dimethoxyphenyl)methyl]-3-phenylthiophene-2-carboxamide