Task: Answer the MCQ question.
Query: Which drug exhibits a 6.019\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) Cc1nc2sccc2c(=O)n1-c1cccc(Cl)c1
(b) C#CCOCCOCCOCCNc1nc(N2CCOCC2)nc(N2CCN(C(=O)[C@H](Cc3cc4ccccc4[nH]3)n3cc([C@@H](N)C(C)CC)nn3)CC2)n1.Cl
Answer: a. Cc1nc2sccc2c(=O)n1-c1cccc(Cl)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#}
Cc1nc2sccc2c(=O)n1-c1cccc(Cl)c1
Cc1nc2sccc2c(=O)n1-c1cccc(Cl)c1
3-(3-chlorophenyl)-2-methylthieno[2,3-d]pyrimidin-4-one