Task: Answer the multiple-choice question.
Question: Which drug exhibits a 0.175\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
(a) COc1ccc(S(=O)(=O)N2CCN(C)CC2)cc1C
(b) CCOC(=O)CCC(=O)Nc1ccccc1C(N)=O
(c) CCC1=Nc2cc(C(=O)O)ccc2Sc2ccc(Cl)cc21
(d) COc1cc(/C=C2\Oc3cc(O)ccc3C2=O)ccc1O
(e) CCN(C(=O)CSc1nc2nc(C)cc(C)n2n1)c1cccc(C)c1
Answer: b. CCOC(=O)CCC(=O)Nc1ccccc1C(N)=O
{#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#}
CCOC(=O)CCC(=O)Nc1ccccc1C(N)=O
CCOC(=O)CCC(=O)Nc1ccccc1C(N)=O
[C][C][O][C][=Branch1][C][=O][C][C][C][=Branch1][C][=O][N][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Branch1][C][N][=O]
ethyl 4-(2-carbamoylanilino)-4-oxobutanoate