Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a 13.131\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a) COc1ccc(CCNC(=O)C(=O)NCC2CCCN2S(=O)(=O)c2cc(C)ccc2C)cc1
b) O=C(Oc1ccc(Cl)cc1)c1ccc2nccnc2c1
c) CCC(CC)C(=O)Nc1cccc(-c2ccc3nncn3n2)c1
d) CCn1c(C)c(C)c2cc(C(=O)NCCN3CCOCC3)ccc21
Answer: b. O=C(Oc1ccc(Cl)cc1)c1ccc2nccnc2c1
{#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#}
O=C(Oc1ccc(Cl)cc1)c1ccc2nccnc2c1
O=C(Oc1ccc(Cl)cc1)c1ccc2nccnc2c1
(4-chlorophenyl)quinoxaline-6-carboxylate