Task: Answer the MCQ question.
Query: Which drug exhibits a 4.978\% 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(-c2c/c(=N\c3nc(-c4ccccc4)c(C)s3)c3ccccc3o2)cc1O
b: CCc1ccccc1NC(=O)COC(=O)c1c(C)nsc1NC
c: CC(=O)Nc1ccc(/C=N/N2CCCCC2)cc1
d: CCOc1ccc2oc(=O)cc(CN3CCN(C(=O)c4ccco4)CC3)c2c1
Answer: b. CCc1ccccc1NC(=O)COC(=O)c1c(C)nsc1NC
{#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#}
CCc1ccccc1NC(=O)COC(=O)c1c(C)nsc1NC
CCc1ccccc1NC(=O)COC(=O)c1c(C)nsc1NC
[2-(2-ethylanilino)-2-oxoethyl] 3-methyl-5-(methylamino)-1,2-thiazole-4-carboxylate