Task: Answer the multiple-choice question.
Question: Which drug exhibits a 0.749\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
[a] O=C1N=C(c2ccccc2)C(c2ccccc2)N1
[b] CC(=O)N1CCOc2ccc(S(=O)(=O)N3CCC(C(=O)NCc4ccc(F)cc4)CC3)cc21
[c] Cc1ccc(-n2cccn2)c(CN2CCCC(C(=O)c3ccc4c(c3)OCO4)C2)c1
[d] O=C(Nc1ccc(N2CCCCC2)cc1)c1ccc(F)cc1F
[e] COc1cccc(CNC(=O)CN2CCC(c3nc4ccc(C)cc4[nH]3)CC2)c1
Answer: a. O=C1N=C(c2ccccc2)C(c2ccccc2)N1
{#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=C1N=C(c2ccccc2)C(c2ccccc2)N1
O=C1N=C(c2ccccc2)C(c2ccccc2)N1
4,5-diphenyl-1,5-dihydroimidazol-2-one