Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 13.252\% 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: O=C(O)c1nc(NCCc2ccccc2)ncc1Cl
b: Cc1ccc(S(=O)(=O)C2(C(=O)NCc3ccccc3Cl)CC2)cc1
c: CCn1c(SCC(=O)Nc2nccs2)nnc1-c1ccncc1
d: Cn1c(SCc2ccccc2C#N)nnc1-c1ccncc1
Answer: a. O=C(O)c1nc(NCCc2ccccc2)ncc1Cl
{#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(O)c1nc(NCCc2ccccc2)ncc1Cl
O=C(O)c1nc(NCCc2ccccc2)ncc1Cl
5-chloro-2-(2-phenylethylamino)pyrimidine-4-carboxylicacid