Task: Answer the MCQ question.
Query: Which drug exhibits a -21.417% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) O=C(Cn1c2c(c(=O)n3ncnc13)CCC2)N/N=C/c1ccc(Cl)cc1
(b) Cc1nc(N2CCOCC2)c2c(C)c(C(=O)Nc3ccc(F)cc3F)sc2n1
Answer: a. O=C(Cn1c2c(c(=O)n3ncnc13)CCC2)N/N=C/c1ccc(Cl)cc1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(Cn1c2c(c(=O)n3ncnc13)CCC2)N/N=C/c1ccc(Cl)cc1
O=C(Cn1c2c(c(=O)n3ncnc13)CCC2)N/N=C/c1ccc(Cl)cc1
N-[(E)-(4-chlorophenyl)methylideneamino]-2-(2-oxo-1,8,10,12-tetrazatricyclo[7.3.0.03,7]dodeca-3(7),9,11-trien-8-yl)acetamide