Task: Answer the multiple-choice question.
Query: Which compound exhibits a 2.978\% 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. Cc1sc[n+](CC(=O)c2ccc(Br)cc2)c1C.[Br-]
b. O=C(Nc1ccc(F)cc1)c1cc(S(=O)(=O)N2CCCCC2)ccc1F
c. Cc1csc(NC(=O)CSc2ncn(-c3ccccc3)n2)n1
d. COc1ccc(CCNC(=O)C(=O)NCc2cccs2)cc1OC
Answer: a. Cc1sc[n+](CC(=O)c2ccc(Br)cc2)c1C.[Br-]
{#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#}
Cc1sc[n+](CC(=O)c2ccc(Br)cc2)c1C.[Br-]
Cc1sc[n+](CC(=O)c2ccc(Br)cc2)c1C.[Br-]
1-(4-bromophenyl)-2-(4,5-dimethyl-1,3-thiazol-3-ium-3-yl)ethanone;bromide